Biography of Victor Frederick William Cavendish-Bentinck, 9th Duke of Portland (1897-1990)
- [Hans] William Bentinck, 1st Earl of Portland (1649-1709)
- [William] Henry Bentinck, 1st Duke of Portland (1682-1726)
- William Bentinck, 2nd Duke of Portland (1709-1762)
- Margaret Cavendish-Bentinck, Duchess of Portland (1715-1785)
- John Albert Bentinck (1737-1775; naval captain and M.P.)
- William Henry Cavendish Cavendish-Bentinck, 3rd Duke of Portland (1738-1809)
- William Henry Cavendish-Scott-Bentinck, 4th Duke of Portland (1768-1854)
- Lord William Henry Cavendish-Bentinck (1774-1839; M.P. and Governor General of India)
- William John Cavendish-Bentinck-Scott, 5th Duke of Portland (1800-1879)
- Lord [William] George Frederic Cavendish-Scott-Bentinck (1802-1848)
- Lord [William] Henry Cavendish-Bentinck (1804-1870)
- William John Arthur Charles James Cavendish-Bentinck, 6th Duke of Portland (1857-1943)
- Winifred Anna Cavendish-Bentinck, Duchess of Portland (1863-1954)
- William Arthur Henry Cavendish-Bentinck, 7th Duke of Portland (1893-1977)
- Ferdinand William Cavendish-Bentinck, 8th Duke of Portland (1888-1980)
- Victor Frederick William Cavendish-Bentinck, 9th Duke of Portland (1897-1990)
- Henry Noel Bentinck, 11th Earl of Portland (1919-1997)
- Timothy Charles Robert Noel Bentinck, 12th Earl of Portland (b 1953)
Victor succeeded to the title in 1980, on the death of his brother, the 8th Duke. He was educated at Wellington College but did not pursue a university education, instead entering the diplomatic service in 1919. His diplomatic career was distinguished. In 1922 he took charge of administrative arrangments for the Lausanne Conference. He served in the British Embassy in Paris and also in the League of Nations Department in the Foreign Office. Other postings included Athens in 1932 and Santiago in 1933.
The high point of the 9th Duke's diplomatic career came in 1939 when he was appointed chairman of the Joint Intelligence Committee. He managed to develop the body as a highly effective instrument of government and as a result became counsellor to the Services Liaison Department of the Foreign Office in 1942.
In 1945 the duke was given his final diplomatic posting on his appointment as Ambassador to Poland. He held the position for two years before the Foreign Office applied to appoint him Ambassador to Brazil. Unfortunately, he never took up the latter post, being obliged to resign from the Foreign Office as a result of the publicity surrounding his divorce.
After his withdrawal from the diplomatic service, Victor embarked on a business career, becoming Vice-Chairman of the Committee of Industrial Interests in Germany. From this position he was able to advance the interests of British companies such as Unilever.
He married firstly, in 1924, Clothilde (d 1984), daughter of James B. Quigley of Dallas, Texas and had:
- William James (1925-1966)
- Mary Jane (b 1929), married firstly Alexander Constantine Georgiades in 1963 (div. 1978) and secondly Professor Stephen Richards Graubard in 1978
Their marriage was dissolved in 1948 when he married Kathleen Elsie (d 2004), daughter of Arthur Barry of Montreal, Canada.
- There do not appear to be any archive collections which hold papers of the 9th Duke.
- P. Howarth, Intelligence Chief Extraordinary: the life of the 9th Duke of Portland (London, 1986) [King’s Meadow Campus East Midlands Collection Not 468.V38 POR]