Biography of William Bentinck (1764-1813; Vice-Admiral)
- [Hans] William Bentinck, 1st Earl of Portland (1649-1709)
- [William] Henry Bentinck, 1st Duke of Portland (1682-1726)
- William Bentinck, 1st Count Bentinck (1704-1774)
- Charlotte Sophie, Countess Bentinck, née Countess of Aldenburg (1715-1800)
- 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 Bentinck (1764-1813; Vice-Admiral)
- 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)
Bentinck was the eldest son of Captain John Albert Bentinck, of Terrington St Clement, Norfolk, and his wife Renira van Tuyll van Serooskerken.
He followed his father into the British Royal Navy. He served at the latter end of the American War of Independence, commanding the 'Assistance' in 1783, at the age of 19. His logbook records subsequent journeys in North America in 1784.
Bentinck commanded the 'Adamant' in 1793-1794 during the War of the First Coalition, and the 'Phaeton' during the Battle of the Glorious First of June in 1794. From July 1794 to March 1795 he commanded the 'Tremendous'.
Between 1798 and 1802 Bentinck served as Governor of St Vincent and the Grenadines.
In 1800, his grandmother Charlotte Sophie, Countess Bentinck, died, and bequeathed him an estate at Doorwerth in The Netherlands.
By 1805 Bentinck was living on his estate in Norfolk, and commanding the Sea Fencibles, a coastal defence force against the French. He was promoted to Rear-Admiral of the Blue in 1805, Rear-Admiral of the White in 1808, and Vice-Admiral of the Blue in 1810. He died of typhus in St Petersburg on 21 February 1813.
Portrait of Captain William Bentinck by George Romney, 1787-1788. (c) National Maritime Museum. Source: http://collections.rmg.co.uk/collections/objects/14025.html
In 1802 William married Lady Frances Augusta Pierrepont (1802-1847), daughter of the 1st Earl Manvers, and had:
- George W.P. Bentinck (1803-1886), of Terrington St Clement, Norfolk
- Henry P.A. Bentinck (1805-1840)
- Charles Aldenburg Bentinck (1810-1891)
- Renira Bentinck (d 1868), m George Martin
Lady Frances m 2ndly in 1821 Henry William Stephens.
- There do not appear to be any published sources relating specifically to Vice-Admiral William Bentinck, although he is mentioned within Charlotte Sophie, Countess Bentinck : her life and times 1715-1800, by her descendant Mrs Aubrey Le Blond (2 vols, London: Hutchinson, 1912)