Rear Admiral Sir Adolphus Augustus Frederick FitzGeorge KCVO (30 January 1846 – 17 December 1922) was a senior officer of the Royal Navy.

Quick Facts Sir Adolphus FitzGeorge, Born ...

Sir Adolphus FitzGeorge
Lieutenant FitzGeorge, of HMS Galatea, 1868
Born	(1846-01-30)30 January 1846 Buckingham Palace, London, England
Died	17 December 1922(1922-12-17) (aged 76) London, England
Allegiance	United Kingdom
Service/branch	Royal Navy
Years of service	1859–1893
Rank	Rear Admiral
Commands held	HMS Jumna HMS Salamis HMS Dasher HMS Rapid
Awards	Knight Commander of the Royal Victorian Order
Spouse(s)	Sophia Jane Holden ​ ​ (m. 1875; died 1920)​ Marguerite Watson ​ (m. 1920)​
Relations	Prince George, Duke of Cambridge (father) Sarah Fairbrother (mother) Olga FitzGeorge (daughter) George FitzGeorge Hamilton (grandchild)

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Adolphus FitzGeorge was born 30 January 1846, the second son of Prince George, Duke of Cambridge and the actress Sarah Fairbrother. His parents subsequently went through a form of marriage in contravention of the Royal Marriages Act 1772, when his mother was pregnant with his youngest brother. As the marriage was void, he and his brothers, George and Augustus, were illegitimate and therefore did not hold royal titles and were ineligible to succeed to the Dukedom of Cambridge.

Adolphus entered the Royal Navy in March 1859. He became sub-lieutenant in 1865, and a lieutenant in the following year. In June 1867, he joined the Galatea, screw frigate, commanded by Captain the Duke of Edinburgh, and in March 1872, was appointed Flag Lieutenant to Admiral Sir Rodney Mundy, Commander-in-Chief, Portsmouth. On 30 November 1872, he was promoted to commander. Following a period at the Royal Naval College, he became Inspecting Officer of Coastguard at Scarborough in February 1874, and in September of the next year, was given command of the sloop Rapid in the Mediterranean. Other commands he held were those of the Dasher, paddle gun-vessel, stationed off the Channel Islands; and the Salamis, dispatch vessel, in the Channel Squadron, from the latter of which he was promoted captain on 14 October 1881. In March 1885, he became captain of the troopship Jumna, in the transport service to India, and his two years or more in this command marked the limit of his active naval employment. He retired on 1 January 1893, and was advanced to rear admiral on the retired list on 20 October 1896. On leaving the Navy he received the appointment of Deputy Ranger of Richmond Park. For many years he acted as equerry to his father, and in 1904, the year in which the Duke died, he was gazetted a Knight Commander of the Royal Victorian Order.

Adolphus married, on 21 September 1875 in Kingston upon Hull, Sophia Jane Holden (2 April 1857 – 3 February 1920), the daughter of Mr. Thomas Holden, of Winstead Hall, Hull, by whom he had one daughter, Olga FitzGeorge. Following the death of the first Lady FitzGeorge, the Admiral married, on 28 October 1920 in London, Marguerite Beatrice Daisy Watson (14 April 1863 – 26 February 1934), daughter of John Watson, of Waresley Court, Hartlebury, Worcestershire.

Sir Adolphus died 17 December 1922 at his residence, 20 Eccleston Square, London.

• Sir Adolphus Fitz George Career in the Navy, The Times, 18 December 1922; p. 14.