Bentinck family is a prominent family belonging to both Dutch and British nobility. Its members have served in the armed forces and as ambassadors and politicians, including Governor General of India and Prime Minister of the United Kingdom. The family is related to the British Royal Family via Queen Elizabeth The Queen Mother's maternal Cavendish-Bentinck line.
The name Bentinck is a
patronymic variation of the Old Germanic name Bento. The family is originally from the East of the Netherlands, and is regarded as noble, or noble from earliest times. The oldest known ancestor is Johan Bentinck, who is mentioned in documents between 1343 and 1386 and owned land near Uradel Heerde.
An important British branch was founded by
Hans Willem Bentinck, 1st Earl of Portland who accompanied William Henry, Prince of Orange to England during the Glorious Revolution. The head of this line was initially given the title of Earl of Portland, later Duke of Portland.
In 1732 the title Graf (Count) Bentinck, of the
Holy Roman Empire, was created for William Bentinck, son of the 1st Earl of Portland. A Royal Licence of 1886 was created which allowed the use of this title in England. The Royal Warrant of 27 April 1932 abolished the use of Foreign Titles in the United Kingdom, but extended the special allowance in 13 cases, including the Bentinck countly title "during the lives of the present holders, their heirs, and their heir's heir, provided such heir's heir is now in existence." That exception has now expired. Another branch with the title Count existed in the Netherlands, but died out in the male line.
The Dutch and British branches of the family continue to exist and belong to both the
Dutch nobility and British nobility.
The Lordship of In- and Kniphausen
The counts of Bentinck were sovereign rulers of the Lordship of In- and Kniphausen, a territory of two parts in and around what is now the city of
Wilhelmshaven. Originally subject to Brussels, the general reorganisation of the Holy Empire in 1803 ( ) granted Reichsdeputationshauptschluss Imperial immediacy until the dissolution of the Holy Empire in 1806. The Lordship maintained a precarious independence until 1810, when France annexed it and the whole German North Sea coast to enforce the Continental System. At the Congress of Vienna in 1815, the Lordship was denied admittance to the German Confederation in deference to Tsar Alexander I, who wished to see the territory annexed by his cousin, the Grand Duke of Oldenburg. Count Bentinck fought for his little state, however, and at the Congress of Aix-la-Chapelle in 1818, the Great Powers agreed that the Count's territory should be granted limited sovereignty.
The Frankfurt Convention of July 10, 1819 recognised In- and Kniphausen as sovereign within its own borders but under the protection of Oldenburg.
The Treaty of Berlin on June 8, 1825 finalized the terms. In- and Kniphausen was permitted its own commercial flag, which its vessels bore on the high seas.  Nevertheless, there was a long dispute between the Oldenburg and the Bentinck families in the latter's inheritance. This dispute was not ended until 1854 with a settlement in which the Bentinck family renounced its sovereignty for financial compensation and certain property rights. The Counts of Bentinck no longer claimed sovereignty over In- and Kniphausen.
Even before thw final settlement, Oldenburg and Prussia had negotiated the
Treaty of Jade of 1853 in which Oldenburg agreed to sell 340 hectares of Kniphausen territory to Prussia as a naval station for its North Sea Fleet. The cession became the city of Wilhelmshaven.
The Dutch estate of the Bentinck family since the 16th century,
Schoonheten House, is situated between the villages Heeten and Raalte in Overijssel. The area contains 5 square kilometres of forests and cultivated land. Nowadays, the family mainly earns its living by forestry, agriculture and renting holiday houses. The British branch of the family owns (Bothal Estates) in Northumberland and Bothal Castle (Welbeck Estates), the ancestral seat of the Welbeck Abbey Dukes of Portland in Nottinghamshire.
Hendrik Bentinck (c. 1397-1477)
Henrich Bentinck (died 1502)
Hendrik Bentinck (c. 1468-1538), Dutch steward of the Veluwe region, and diplomat
Willem Bentinck (died 1576)
Eusebius Bentinck (died 1584)
Hendrik Bentinck (1563-1639)
Berent Bentinck (1597-1668)
Eusebius Borchart Bentinck (1643-1710)
Willem Bentinck (1673-1747)
Berend Hendrik Bentinck (1702-1773)
Hendrik Adolf Bentinck (1678-1734)
Willem Bentinck (1721-1784)
William Bentinck, 1st Earl of Portland (1649-1709), Dutch general and diplomat; English peer from 1689
Henry Bentinck, 1st Duke of Portland (1682-1726), Dutch-born British politician and colonial statesman
Mary Capel, Countess of Essex, née Bentinck (1679-1726) Willem Bentinck van Rhoon, 1st Count Bentinck (1704-1774), Dutch politician; married Charlotte Sophie of Aldenburg (1715-1800), ruling Countess of Varel and Kniphausen
Christiaan Frederik Anton Willem Karel Bentinck (1734-1768)
Willem Gustaaf Frederik Bentinck, 2nd Count Bentinck (1762-1835), Dutch politician Jan Carel van Aldenburg Bentinck (1763-1833)
Willem Frederik Christiaan Bentinck, 3rd Count Bentinck (1787-1855)
Carel Anton Ferdinand van Aldenburg Bentinck, 4th Count Bentinck (1792-1864)
Henry Bentinck, 5th Count Bentinck (1846-1903), resigned his rights to his younger brothers 1874
Count Robert Bentinck (1875-1932)
Sir Charles Henry Bentinck (1879-1955), British diplomat who, after retirement, became an Anglican priest Willem van Aldenburg Bentinck, 6th Count Bentinck (1848-1912)
Willem van Aldenburg Bentinck, 7th Count Bentinck (1880-1958)
Carel Reinhard Adelbert van Aldenburg Bentinck (1853-1934)
Godard Johan George Carel van Aldenburg Bentinck (1857-1940)
Carel van Aldenburg Bentinck, 8th Count Bentinck (1885-1964)
Adriaan van Aldenburg Bentinck, 9th Count Bentinck (1887-1968) Sir Henry John William Bentinck (1796-1876), British general John Bentinck (1737-1775), Royal Navy captain, inventor and member of Parliament
William Bentinck (1764-1813), Royal Navy admiral, Governor of St Vincent and the Grenadines
Bentinck Family Tree:
Earls of Portland, Dukes of Portland and Counts Bentinck
EARL OF PORTLAND, 1689 Hans William Bentinck, 1st Earl of Portland (1649-1709) DUKE OF PORTLAND, 1715 COUNT BENTINCK, 1732 Willem Bentinck (1681-1689) Henry Bentinck, 1st Duke of Portland 2nd Earl of Portland (1682-1726) William Bentinck, 1st Count Bentinck (1704-1774) William Bentinck, 2nd Duke of Portland 3rd Earl of Portland (1709-1762) Christian Frederick Anthony Bentinck (1734-1768) William Henry Cavendish-Bentinck, 3rd Duke of Portland 4th Earl of Portland (1738-1809) P.M. 1783, 1807-09 William Gustavus Frederic Bentinck, 2nd Count Bentinck (1762-1835) John Charles Bentinck, 3rd Count Bentinck (1763-1833) William Henry Cavendish-Scott-Bentinck, 4th Duke of Portland 5th Earl of Portland (1768-1854) Lord William Charles Augustus Cavendish-Bentinck (1780-1826) Lord Frederick Cavendish-Bentinck (1781-1828) Charles Anthony Ferdinand Bentinck, 4th Count Bentinck (1792-1864) William Henry Cavendish-Scott-Bentinck, Marquess of Titchfield (1796-1824) William John Cavendish-Scott-Bentinck, 5th Duke of Portland 6th Earl of Portland (1800-1879) Arthur Cavendish-Bentinck (1819-1877) George Augustus Frederick Cavendish-Bentinck (1821-1891) Henry Charles Adolphus Frederick William Bentinck, 5th Count Bentinck (1846-1903) William Charles Philip Otto Bentinck, 6th Count Bentinck (1848-1912) Count Godard John George Charles Bentinck (1857-1940) William John Arthur Charles James Cavendish-Bentinck, 6th Duke of Portland 7th Earl of Portland (1857-1943) William George Frederick Cavendish-Bentinck (1856-1948) Count Robert Charles Bentinck (1875-1932) William Frederick Charles Henry Bentinck, 7th Count Bentinck (1880-1958) Charles Arthur Reynard William Godard Augustus Bentinck, 8th Count Bentinck (1885-1964) Godard Adrian Henry Julius Bentinck, 9th Count Bentinck (1887-1968) William Arthur Henry Cavendish-Bentinck, 7th Duke of Portland 8th Earl of Portland (1893-1977) Ferdinand William Cavendish-Bentinck, 8th Duke of Portland 9th Earl of Portland (1888-1980) Victor Frederick William Cavendish-Bentinck, 9th Duke of Portland 10th Earl of Portland  (1897-1990) Henry Noel Bentinck, 11th Earl of Portland 10th Count Bentinck (1919-1997) William James Cavendish-Bentinck (1925-1966) Timothy Charles Robert Noel Bentinck, 12th Earl of Portland 11th Count Bentinck (born 1953) William Jack Henry Bentinck, Viscount Woodstock (born 1984)
Bentinck Island near Victoria, British Columbia at may have been named after 48°18?54.08?N 123°32?30.32?W / 48.3150222°N 123.5417556°W Lord George Bentinck. 
North and South Bentinck Arms, inlets off Burke Channel, were named after William Cavendish-Bentinck, 3rd Duke of Portland by Captain Vancouver in 1793.  : 48 North Bentinck Arm is significant in the history of Canada because it was here in 1793 that Sir Alexander Mackenzie completed the first recorded transcontinental crossing of North America by a European north of Mexico.
HMS , Royal Navy ships named after Captain Bentinck John Bentinck. After
Kaiser Wilhelm II fled to the Netherlands at the end of World War I, he was housed at Amerongen Castle, belonging to Count Bentinck.
HMS is a Portland (F79) type 23 frigate ( Duke class) named after the Dukes of Portland. It is the eighth ship to hold the title, but the first to be named after the Portland family, rather than Portland Harbour. Bentinck Street, near Cavendish Square in the West End of London, bears the family name.
Bentinckia, a genus of palms named after Lord William Bentinck, Governor General of British India.
^ Twiss, Travers:
The Law of Nations Considered as Independent Political Communities, Oxford University Press, 1861, pages 30-32.
^ Hertslet, Edward: The Map of Europe by Treaty, 1875, pages 723-726.
^ The Dukedom of Portland became extinct upon the 9th Duke's death and the Earldom of Portland reverted to the male line of the 1st Earl of Portland with Henry Noel acceding as 11th Earl of Portland.
"Bentinck Island". BC Geographical Names.
Walbran, Captain John T. (1971), (Facsimile reprint of 1909 ed.), Vancouver/Toronto: Douglas & McIntyre, British Columbia Place Names, Their Origin and History ISBN , archived from 0-88894-143-9 the original on 3 March 2016 , retrieved 2008
. Kelly's Directories. 1884. p. 784 Debrett's Peerage, Baronetage, Knightage, and Companionage . Retrieved 2017.