Age, Biography, and Wiki
Lord Louis Mountbatten, born Prince Louis of Battenberg on June 25, 1900, was a prominent figure in British history. He was a maternal uncle of Prince Philip, Duke of Edinburgh, and a second cousin of King George VI. Mountbatten played a significant role in the British Royal Navy and served as the last Viceroy of India and the first Governor-General of the Dominion of India. He was assassinated on August 27, 1979, in a bombing carried out by the IRA.
Occupation | Politician |
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Date of Birth | 25 June 1900 |
Age | 125 Years |
Birth Place | Frogmore House, Windsor, Berkshire, England |
Horoscope | Cancer |
Country | Ireland |
Date of death | 27 August, 1979 |
Died Place | Mullaghmore, County Sligo, Ireland |
Height, Weight & Measurements
There is no specific information available on Lord Mountbatten's height and weight. However, he was known for his distinguished appearance and military stature throughout his career.
After leaving the Admiralty, Mountbatten took the position of Chief of the Defence Staff. He served in this post for six years during which he was able to consolidate the three service departments of the military branch into a single Ministry of Defence. Ian Jacob, co-author of the 1963 Report on the Central Organisation of Defence that served as the basis of these reforms, described Mountbatten as "universally mistrusted in spite of his great qualities". On their election in October 1964, the Wilson ministry had to decide whether to renew his appointment the following July. The Defence Secretary, Denis Healey, interviewed the forty most senior officials in the Ministry of Defence; only one, Sir Kenneth Strong, a personal friend of Mountbatten, recommended his reappointment. "When I told Dickie of my decision not to reappoint him," recalls Healey, "he slapped his thigh and roared with delight; but his eyes told a different story."
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Dating & Relationship Status
Mountbatten was married to Edwina Ashley from 1922 until her death in 1960. The couple had a notable marriage, with both being socially prominent and influential figures in British society.
In February 1947, Mountbatten was appointed Viceroy and Governor-General of India and oversaw the Partition of India into India and Pakistan. He then served as the first Governor-General of the Union of India until June 1948 and played a significant role in persuading princely states to accede to India. In 1952, Mountbatten was appointed commander-in-chief of the British Mediterranean Fleet and NATO Commander Allied Forces Mediterranean. From 1955 to 1959, he was First Sea Lord, a position that had been held by his father, Prince Louis of Battenberg, some forty years earlier. Thereafter he served as chief of the Defence Staff until 1965, making him the longest-serving professional head of the British Armed Forces to date. During this period Mountbatten also served as chairman of the NATO Military Committee for a year.
He was the youngest child and the second son of Prince Louis of Battenberg and his wife Princess Victoria of Hesse and by Rhine. Mountbatten's maternal grandparents were Louis IV, Grand Duke of Hesse, and Princess Alice of the United Kingdom, who was a daughter of Queen Victoria and Prince Albert of Saxe-Coburg and Gotha. His paternal grandparents were Prince Alexander of Hesse and by Rhine and Julia, Princess of Battenberg. Mountbatten's paternal grandparents' marriage was morganatic because his grandmother was not of royal lineage; as a result, he and his father were styled "Serene Highness" rather than "Grand Ducal Highness", were not eligible to be titled Princes of Hesse, and were given the less exalted Battenberg title. Mountbatten's elder siblings were Princess Alice of Battenberg (mother of Prince Philip, Duke of Edinburgh), Princess Louise of Battenberg (later Queen Louise of Sweden), and Prince George of Battenberg (later George Mountbatten, 2nd Marquess of Milford Haven).
Mountbatten was baptised in the large drawing room of Frogmore House on 17 July 1900 by the Dean of Windsor, Philip Eliot. His godparents were Queen Victoria (his maternal great-grandmother), Nicholas II of Russia (his maternal uncle through marriage and paternal second cousin, represented by the child's father) and Prince Francis Joseph of Battenberg (his paternal uncle, represented by Lord Edward Clinton). He wore the original 1841 royal christening gown at the ceremony.
Mountbatten's mother's younger sister was Russian Empress Alexandra Feodorovna. In childhood he visited the Imperial Court of Russia at St Petersburg and became intimate with the Russian Imperial Family, harbouring romantic feelings towards his maternal first cousin Grand Duchess Maria Nikolaevna, whose photograph he kept at his bedside for the rest of his life.
Mountbatten adopted his surname as a result of World War I. From 1914 to 1918, Britain and its allies were at war with the Central Powers, led by the German Empire. To appease British nationalist sentiment, in 1917 King George V issued a royal proclamation changing the name of the British royal house from the German House of Saxe-Coburg and Gotha to the House of Windsor. The king's British relatives with German names and titles followed suit with Mountbatten's father adopting the surname Mountbatten, an anglicisation of Battenberg. The elder Mountbatten was subsequently created Marquess of Milford Haven.
Mountbatten's experience in the region and in particular his perceived Labour sympathies at that time, alongside his wife's longstanding friendship and collaboration with V. K. Krishna Menon, led to Menon putting forth Mountbatten's name alone as a viceregal candidate acceptable to the Indian National Congress, in clandestine meetings with Sir Stafford Cripps and Clement Attlee. Attlee advised King George VI to appoint Mountbatten Viceroy of India on 20 February 1947 charged with overseeing the transition of British India to independence no later than 30 June 1948. Mountbatten's instructions were to avoid partition and preserve a united India as a result of the transfer of power but authorised him to adapt to a changing situation in order to get Britain out promptly with minimal reputational damage.
Mountbatten was fond of Congress leader Jawaharlal Nehru and his liberal outlook for the country, and, through the efforts of their close mutual friend, Krishna Menon, developed a certain depth of feeling and intimacy with Nehru that was shared by his wife, Edwina. He felt differently about the Muslim League leader Muhammad Ali Jinnah, but was aware of his power, stating "If it could be said that any single man held the future of India in the palm of his hand in 1947, that man was Mohammad Ali Jinnah." During his meeting with Jinnah on 5 April 1947, Mountbatten tried to persuade him of a united India, citing the difficult task of dividing the mixed states of Punjab and Bengal, but the Muslim leader was unyielding in his goal of establishing a separate Muslim state called Pakistan.
Among the Indian leaders, Mahatma Gandhi emphatically insisted on maintaining a united India and for a while successfully rallied people to this goal. During his meeting with Mountbatten, Gandhi asked Mountbatten to invite Jinnah to form a new central government, but Mountbatten never uttered a word of Gandhi's ideas to Jinnah. When Mountbatten's timeline offered the prospect of attaining independence soon, sentiments took a different turn. Given Mountbatten's determination, Nehru and Sardar Patel's inability to deal with the Muslim League and, lastly, Jinnah's obstinacy, all Indian party leaders (except Gandhi) acquiesced to Jinnah's plan to divide India, which in turn eased Mountbatten's task. Mountbatten also developed a strong relationship with the Indian princes, who ruled those portions of India not directly under British rule. His intervention was decisive in persuading the vast majority of them to see advantages in opting to join the Indian Union. On one hand, the integration of the princely states can be viewed as one of the positive aspects of his legacy but on the other, the refusal of Hyderabad, Jammu and Kashmir, and Junagadh to join one of the dominions led to future wars between Pakistan and India.
When India and Pakistan attained independence at midnight of 14–15 August 1947, Mountbatten was alone in his study at the Viceroy's house saying to himself just before the clock struck midnight that for still a few minutes, he was the most powerful man on Earth. At 12 am, as a last act of showmanship, he created Joan Falkiner, the Australian wife of the Nawab of Palanpur, a highness, an act that was apparently one of his favourite duties that was annulled at the stroke of midnight.
During his reign as governor-general until 21 June 1948, he played a significant role in the political integration of India and persuaded many princely states to join India. On Mountbatten's advice, India took the issue of Kashmir to the newly formed United Nations in January 1948. Accounts differ on the future which Mountbatten desired for Kashmir. Pakistani accounts suggest that Mountbatten favoured the accession of Kashmir to India, citing his close relationship to Nehru. Mountbatten's own account says that he simply wanted Maharaja Hari Singh to make up his mind. The viceroy made several attempts to mediate between the Congress leaders, Muhammad Ali Jinnah and Hari Singh on issues relating to the accession of Kashmir, though he was largely unsuccessful in resolving the conflict. After the tribal invasion of Kashmir, it was on his suggestion that India moved to secure the accession of Kashmir from Hari Singh before sending in military forces for his defence.
Mountbatten served his final posting at the Admiralty as First Sea Lord and Chief of the Naval Staff from April 1955 to July 1959, the position which his father had held some forty years before. This was the first time in Royal Naval history that a father and son had both attained such high office. He was promoted to Admiral of the Fleet on 22 October 1956.
In 1969, Mountbatten tried unsuccessfully to persuade his second cousin, the Spanish pretender Infante Juan, Count of Barcelona, to ease the eventual accession of his son, Juan Carlos, to the Spanish throne by signing a declaration of abdication while in exile. The next year Mountbatten attended an official White House dinner during which he took the opportunity to have a 20-minute conversation with Richard Nixon and Secretary of State William P. Rogers, about which he later wrote, "I was able to talk to the President a bit about both Tino [Constantine II of Greece] and Juanito [Juan Carlos of Spain] to try and put over their respective points of view about Greece and Spain, and how I felt the US could help them." In January 1971, Nixon hosted Juan Carlos and his wife Sofia (sister of the exiled King Constantine) during a visit to Washington and later that year The Washington Post published an article alleging that Nixon's administration was seeking to persuade Franco to retire in favour of the young Bourbon prince.
Mountbatten admitted: "Edwina and I spent all our married lives getting into other people's beds." He maintained an affair for several years with Yola Letellier, the wife of Henri Letellier, publisher of Le Journal and mayor of Deauville (1925–28). Yola Letellier's life story was the inspiration for Colette's novel Gigi.
In 2019, Ron Perks, Mountbatten's driver in Malta in 1948, alleged that he used to visit the Red House, an upmarket gay brothel in Rabat used by naval officers. Andrew Lownie, a fellow of the Royal Historical Society, wrote that the United States Federal Bureau of Investigation (FBI) maintained files regarding Mountbatten's alleged homosexuality. Lownie also interviewed several young men who claimed to have been in a relationship with Mountbatten. John Barratt, Mountbatten's personal and private secretary for 20 years, has said Mountbatten was not a homosexual, and that it would have been impossible for such a fact to have been hidden from him.
In 2019, files became public showing that the FBI knew in the 1940s of allegations that Mountbatten was homosexual and a paedophile. The FBI file on Mountbatten, begun after he took on the role of Supreme Allied Commander in Southeast Asia in 1944, describes Mountbatten and his wife Edwina as "persons of extremely low morals", and contains a claim by American author Elizabeth, Baroness Decies, that Mountbatten was known to be a homosexual and had "a perversion for young boys". Norman Nield, Mountbatten's driver from 1942 to 1943, told the tabloid New Zealand Truth that he transported young boys aged 8 to 12 who had been procured for the Admiral to Mountbatten's official residence and was paid to keep quiet. Robin Bryans had also claimed to the Irish magazine Now that Mountbatten and Anthony Blunt, along with others, were part of a ring that engaged in homosexual orgies and procured boys in their first year at public schools such as the Portora Royal School in Enniskillen. Former residents of the Kincora Boys' Home in Belfast have asserted that they were trafficked to Mountbatten at Classiebawn Castle, his residence in Mullaghmore, County Sligo. These claims were dismissed by the Historical Institution Abuse (HIA) Inquiry. The HIA stated that the article making the original allegations "did not give any basis for the assertions that any of these people [Mountbatten and others] were connected with Kincora".
In October 2022 Arthur Smyth, a former resident of Kincora, waived his anonymity to make allegations of child abuse against Mountbatten. The allegations are part of a civil case against state authorities responsible for the care of children in Kincora. Smyth claims that he was raped twice by Mountbatten in encounters facilitated by the house father of Kincora.
Mountbatten's qualification for offering advice to this particular heir to the throne was unique; it was he who had arranged the visit of King George VI and Queen Elizabeth to Dartmouth Royal Naval College on 22 July 1939, taking care to include the young Princesses Elizabeth and Margaret in the invitation, but assigning his nephew, Cadet Prince Philip of Greece, to keep them amused while their parents toured the facility. This was the first recorded meeting of Charles's future parents but a few months later, Mountbatten's efforts nearly came to naught when he received a letter from his sister Alice in Athens informing him that Philip was visiting her and had agreed to repatriate permanently to Greece. Within days, Philip received a command from his cousin and sovereign, King George II of Greece, to resume his naval career in Britain which, though given without explanation, the young prince obeyed.
In 1974, Mountbatten began corresponding with Charles about a potential marriage to his granddaughter, Amanda Knatchbull, who was also Charles's second cousin. It was about this time he also recommended that the 25-year-old prince get on with "sowing some wild oats". Charles dutifully wrote to Amanda's mother (who was also his godmother and his father's first cousin), Lady Brabourne, about his interest. Her answer was supportive, but advised him that she thought her daughter still rather young to be courted.
Also aboard the boat were his elder daughter Patricia, Lady Brabourne; her husband Lord Brabourne; their twin sons Nicholas and Timothy Knatchbull; Lord Brabourne's mother Doreen, Dowager Lady Brabourne; and Paul Maxwell, a young crew member from Enniskillen in County Fermanagh. Nicholas (aged 14) and Paul (aged 15) were killed by the blast and the others were seriously injured. Doreen, Dowager Lady Brabourne (aged 83), died from her injuries the following day.
The attack triggered outrage and condemnation around the world. Queen Elizabeth II received messages of condolence from leaders including US President Jimmy Carter and Pope John Paul II. Carter expressed his "profound sadness" at the death. The Irish American community was disgusted with the attack, especially since many American soldiers served under Mountbatten during World War II. Jim Rooney, son of Pittsburgh Steelers president Dan M. Rooney (who co-founded The Ireland Funds in 1976), recalled that:"Mountbatten's murder shocked many Irish-Americans, my parents included, because they remembered him for the role he played in defeating the Axis. 'It was quite sad because being in America, you were familiar with Lord Mountbatten because of World War II,' my mother recalled. 'It was a very sad time.' But my father didn't give in to despair. 'That didn't slow down [my father] one bit. It more or less gave him more energy,' my mother said."
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Husband | Edwina Ashley (m. 18 July 1922-21 February 1960) |
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Net Worth and Salary
Lord Mountbatten's net worth is not explicitly documented in contemporary financial terms. However, he was a member of the British aristocracy and held various prestigious positions, which suggested a significant income and wealth during his lifetime.
Career, Business, and Investments
- Military Career: Mountbatten joined the Royal Navy in 1913 and served during both World Wars. He was appointed Supreme Allied Commander, South East Asia Command, in the Second World War.
- Political Career: He played a crucial role in India's transition to independence and was the last Viceroy of India and the first Governor-General of the Dominion of India.
- Business and Investments: There is little information on specific business investments, but his role in the British establishment likely involved various financial interests.
Mountbatten attended the Royal Naval College, Osborne, before entering the Royal Navy in 1916. He saw action during the closing phase of the First World War, and after the war briefly attended Christ's College, Cambridge. During the interwar period, Mountbatten continued to pursue his naval career, specialising in naval communications. Following the outbreak of the Second World War, he commanded the destroyer HMS Kelly (F01) and the 5th Destroyer Flotilla. He saw considerable action in Norway, in the English Channel, and in the Mediterranean. In August 1941, he received command of the aircraft carrier HMS Illustrious (87). He was appointed chief of Combined Operations and a member of the Chiefs of Staff Committee in early 1942, and organised the raids on St Nazaire and Dieppe. In August 1943, Mountbatten became Supreme Allied Commander South East Asia Command and oversaw the recapture of Burma and Singapore from the Japanese by the end of 1945. For his service during the war, Mountbatten was created viscount in 1946 and earl the following year.
On 18 March 1942, he was promoted to the acting rank of vice admiral and given the honorary ranks of lieutenant general and air marshal to have the authority to carry out his duties in Combined Operations; and, despite the misgivings of General Sir Alan Brooke, the Chief of the Imperial General Staff, Mountbatten was placed in the Chiefs of Staff Committee. He was in large part responsible for the planning and organisation of the St Nazaire Raid on 28 March, which put out of action one of the most heavily defended docks in Nazi-occupied France until well after the war's end, the ramifications of which contributed to allied supremacy in the Battle of the Atlantic. After the successes at Bruneval and St Nazaire came the disastrous Dieppe Raid of 19 August 1942. He was central in the planning and promotion of the raid on the port of Dieppe. The raid was a marked failure, with casualties of almost 60%, the great majority of them Canadians. Following the Dieppe Raid, Mountbatten became a controversial figure in Canada, with the Royal Canadian Legion distancing itself from him during his visits there during his later career. His relations with Canadian veterans, who blamed him for the losses, "remained frosty" after the war.
In August 1943, Churchill appointed Mountbatten the Supreme Allied Commander South East Asia Command (SEAC) with promotion to acting full admiral. His less practical ideas were sidelined by an experienced planning staff led by Lieutenant-Colonel James Allason, though some, such as a proposal to launch an amphibious assault near Rangoon, got as far as Churchill before being quashed.
Notwithstanding the self-promotion of his own part in Indian independence – notably in the television series The Life and Times of Admiral of the Fleet Lord Mountbatten of Burma, produced by his son-in-law Lord Brabourne, and Freedom at Midnight by Dominique Lapierre and Larry Collins (of which he was the main quoted source) – his record is seen as very mixed. One common view is that he hastened the process of independence unduly and recklessly, foreseeing vast disruption and loss of life and not wanting this to occur on his watch, but thereby actually helping it to occur (albeit in an indirect manner), especially in Punjab and Bengal. John Kenneth Galbraith, the Canadian-American Harvard University economist, who advised governments of India during the 1950s and was an intimate of Nehru who served as the American ambassador from 1961 to 1963, was a particularly harsh critic of Mountbatten in this regard. However, another view is that the British were forced to expedite the partition process to avoid involvement in a potential civil war with law and order having already broken down and Britain with limited resources after the Second World War. According to historian Lawrence James, Mountbatten was left with no other option but to cut and run, with the alternative being involvement in a potential civil war that would be difficult to get out of.
Mountbatten was passionate about genealogy, an interest he shared with other European royalty and nobility; according to Ziegler, he spent a great deal of his leisure time in studying his links with European royal houses. From 1957 until his death, Lord Mountbatten was Patron of the Cambridge University Heraldic and Genealogical Society. He was equally passionate about orders, decorations and military ranks and uniforms, though he considered this interest to be a sign of vanity and constantly tried to distance himself from it, with limited success. Over the course of his career, he consistently attempted to secure as many orders and decorations as possible. Particular about details of dress, Mountbatten took an interest in fashion design, introducing trouser zips, a tail-coat with broad, high lapels and a "buttonless waistcoat" that could be pulled on over the head. In 1949, having by then relinquished the office of Governor-General of India but retaining a keen interest in Indian affairs, he designed new flags, insignia, and details of uniforms for the Indian Armed Forces ahead of the transition from British dominion to republic; many of his designs were implemented and remain in use.
The IRA issued a statement afterward, saying:"The IRA claim responsibility for the execution of Lord Louis Mountbatten. This operation is one of the discriminate ways we can bring to the attention of the English people the continuing occupation of our country. ... The death of Mountbatten and the tributes paid to him will be seen in sharp contrast to the apathy of the British Government and the English people to the deaths of over three hundred British soldiers, and the deaths of Irish men, women, and children at the hands of their forces."
Mountbatten supported the burgeoning nationalist movements which grew up in the shadow of Japanese occupation. His priority was to maintain practical, stable government, but driving him was an idealism in which he believed every people should be allowed to control their own destiny. Critics said he was too ready to overlook their faults, and especially their subordination to communist control. Ziegler says that in Malaya, where the main resistance to the Japanese came from Chinese who were under considerable communist influence, "Mountbatten proved to have been naïve in his assessment. ... He erred, however, not because he was 'soft on Communism' ... but from an over-readiness to assume the best of those with whom he had dealings." Furthermore, Ziegler argues, he was following a practical policy based on the assumption that it would take a long and bloody struggle to drive the Japanese out, and he needed the support of all the anti-Japanese elements, most of which were either nationalists or communists.
Mountbatten took pride in enhancing intercultural understanding and in 1984, with his elder daughter as the patron, the Mountbatten Institute was developed to allow young adults the opportunity to enhance their intercultural appreciation and experience by spending time abroad. The IET annually awards the Mountbatten Medal for an outstanding contribution, or contributions over a period, to the promotion of electronics or information technology and their application.
Canada's capital city of Ottawa named Mountbatten Avenue in his memory. Java Street in Kuala Lumpur, Malaysia was renamed Jalan Mountbatten after the Second World War; it was renamed again to Jalan Tun Perak in 1981. The Mountbatten estate and Mountbatten MRT station in Singapore were named after him.
Social Network
Mountbatten was deeply connected within the British royal family and held significant influence in British society. His social network included prominent figures from the military, politics, and aristocracy.
After his tenure as governor-general concluded, Mountbatten continued to enjoy close relations with Nehru and the post-Independence Indian leadership, and was welcomed as a former governor-general of India on subsequent visits to the country, including during an official trip in March 1956. The Pakistani government, by contrast, lacked a positive view of Mountbatten for his perceived hostile attitude towards Pakistan and deemed him persona non grata, barring him from transiting their airspace during the same visit.
From 1967 until 1978, Mountbatten was president of the United World Colleges Organisation, then represented by a single college: that of Atlantic College in South Wales. Mountbatten supported the United World Colleges and encouraged heads of state, politicians, and personalities throughout the world to share his interest. Under his presidency and personal involvement, the United World College of South East Asia was established in Singapore in 1971, followed by the United World College of the Pacific in Victoria, British Columbia, in 1974. In 1978, Mountbatten passed the presidency of the college to his great-nephew, Charles, Prince of Wales.
The first official history of MI5, The Defence of the Realm (2009), implied that there was a plot against Wilson and that MI5 did have a file on him. Yet it also made clear that the plot was in no way official and that any activity centred on a small group of discontented officers. This much had already been confirmed by former cabinet secretary Lord Hunt, who concluded in a secret inquiry conducted in 1996 that "there is absolutely no doubt at all that a few, a very few, malcontents in MI5 ... a lot of them like Peter Wright who were right-wing, malicious and had serious personal grudges – gave vent to these and spread damaging malicious stories about that Labour government."
Like many members of the royal family, Mountbatten was an aficionado of polo. Mountbatten introduced the sport to the Royal Navy in the 1920s and wrote a book on the subject. He received US patent 1,993,334 in 1931 for a polo stick. He also served as Commodore of Emsworth Sailing Club in Hampshire from 1931. He was a long-serving Patron of the Society for Nautical Research (1951–1979). Apart from official documents, Mountbatten was not much of a reader, though he liked P. G. Wodehouse's books. He enjoyed the cinema; his favourite stars were Fred Astaire, Rita Hayworth, Grace Kelly and Shirley MacLaine. In general, however, he had a limited interest in the arts.
Mountbatten's faults, according to his biographer Philip Ziegler, like everything else about him, "were on the grandest scale. His vanity though child-like, was monstrous, his ambition unbridled ... He sought to rewrite history with cavalier indifference to the facts to magnify his own achievements." However, Ziegler concludes that Mountbatten's virtues outweighed his defects: "He was generous and loyal ... He was warm-hearted, predisposed to like everyone he met, quick-tempered but never bearing grudges ... His tolerance was extraordinary; his readiness to respect and listen to the views of others was remarkable throughout his life."
Education
Mountbatten attended Christ's College, Cambridge, for his education.
Mountbatten was educated at home for the first 10 years of his life; he was then sent to Lockers Park School in Hertfordshire and on to the Royal Naval College, Osborne, in May 1913.
While still an acting-sub-lieutenant, Mountbatten was appointed first lieutenant (second-in-command) of the P-class sloop HMS P. 31 on 13 October 1918 and was confirmed as a substantive sub-lieutenant on 15 January 1919. HMS P. 31 took part in the Peace River Pageant on 4 April 1919. Mountbatten attended Christ's College, Cambridge, for two terms, starting in October 1919, where he studied English literature (including John Milton and Lord Byron) in a programme designed to augment the education of junior officers which had been curtailed by the war. He was elected for a term to the Standing Committee of the Cambridge Union Society and was suspected of sympathy for the Labour Party, then emerging as a potential party of government for the first time.
Pursuing his interests in technological development and gadgetry, Mountbatten joined the Portsmouth Signals School in August 1924 and then went on briefly to study electronics at the Royal Naval College, Greenwich. Mountbatten became a Member of the Institution of Electrical Engineers (IEE), now the Institution of Engineering and Technology (IET). He was posted to the battleship HMS Centurion (1911) in the Reserve Fleet in 1926 and became Assistant Fleet Wireless and Signals Officer of the Mediterranean Fleet under the command of Admiral Sir Roger Keyes in January 1927. Promoted lieutenant commander on 15 April 1928, Mountbatten returned to the Signals School in July 1929 as Senior Wireless Instructor. He was appointed Fleet Wireless Officer to the Mediterranean Fleet in August 1931 and, having been promoted commander on 31 December 1932, was posted to the battleship HMS Resolution (09).
On the night of 9–10 May 1940, Kelly was torpedoed amidships by a German E-boat S 31 off the Dutch coast, and Mountbatten thereafter commanded the 5th Destroyer Flotilla from the destroyer HMS Javelin (F61). On 29 November 1940 the 5th Flotilla engaged three German destroyers off Lizard Point, Cornwall. Mountbatten turned to port to match a German course change. This was "a rather disastrous move as the directors swung off and lost target" and it resulted in Javelin being struck by two torpedoes. He rejoined Kelly in December 1940, by which time the torpedo damage had been repaired.
Mountbatten claimed that the lessons learned from the Dieppe Raid were necessary for planning the Normandy invasion on D-Day nearly two years later. However, military historians such as Major General Julian Thompson, a former member of the Royal Marines, have written that these lessons should not have needed a debacle such as Dieppe to be recognised. Nevertheless, as a direct result of the failings of the Dieppe Raid, the British made several innovations, most notably Hobart's Funnies, specialised armoured vehicles which, in the course of the Normandy Landings, undoubtedly saved many lives on those three beachheads upon which Commonwealth soldiers were landing (Gold Beach, Juno Beach and Sword Beach).
Mountbatten also helped to launch the International Baccalaureate; in 1971 he presented the first IB diplomas in the Greek Theatre of the International School of Geneva, Switzerland.
Mountbatten was a strong influence in the upbringing of his great-nephew, the future King Charles III, and later as a mentor – "Honorary Grandfather" and "Honorary Grandson", they fondly called each other according to the Jonathan Dimbleby biography of the then-Prince – though according to both the Ziegler biography of Mountbatten and the Dimbleby biography of the Prince, the results may have been mixed. He from time to time strongly upbraided the Prince for showing tendencies towards the idle pleasure-seeking dilettantism of his predecessor as Prince of Wales, King Edward VIII, whom Mountbatten had known well in their youth. Yet he also encouraged the Prince to enjoy the bachelor life while he could, and then to marry a young and inexperienced girl so as to ensure a stable married life.
On hearing of Mountbatten's death, the then Master of the Queen's Music, Malcolm Williamson, wrote the Lament in Memory of Lord Mountbatten of Burma for violin and string orchestra. The 11-minute work was given its first performance on 5 May 1980 by the Scottish Baroque Ensemble, conducted by Leonard Friedman.