House of Bentinck Incorporating the families of Ginkel, Harley, Scott and Canning
Earls of Portland (1689) Dukes of Portland (1715-1990)
Hans William Bentinck, 1st Earl of Portland, Viscount Woodstock and Baron Cirencester, Baron Bentinck of Diepenheim and Schoonheten KG (1649–1709)
Henry Bentinck, 1st Duke of Portland, Marquess of Titchfield, 2nd Earl of Portland (1682–1726)
William Bentinck, 2nd Duke of Portland (1709–1762), married , daughter of Edward Harley, 2nd Earl of Oxford and Earl Mortimer and Lady Henrietta Cavendish Holles, herself the daughter of John Holles, 1st Duke of Newcastle-upon-Tyne and Lady Margaret Cavendish, a daughter of the 2nd Duke of Newcastle-upon-Tyne.
William Henry Cavendish Cavendish-Bentinck, 3rd Duke of Portland KG (1738–1809), married Lady Dorothy Cavendish, daughter of William Cavendish, 4th Duke of Devonshire and in 1801 he assumed by Royal license the additional surname of Cavendish.
William Henry Cavendish Cavendish-Scott-Bentinck, 4th Duke of Portland (1768–1854), married Henrietta, elder daughter of General John Scott and the time of his marriage he obtained Royal Licence to take the name "Scott" in addition to that of Bentinck.
William John Cavendish Bentinck-Scott, 5th Duke of Portland (1800–1879)
William John Arthur Charles James Cavendish-Bentinck, 6th Duke of Portland KG(1857–1943), descended from 3rd Duke of Portland.
William Arthur Henry Cavendish-Bentinck, 7th Duke of Portland KG (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, Graf Bentinck und Waldeck Limpurg (1919–1997), a descendant of The Hon. William Bentinck, 1st Graf Bentinck (1704-1774), younger son of William Bentinck, 1st Earl of Portland and son of Lt.-Col. Henry Charles Adolphus Frederick William Bentinck, 5th Graf Bentinck.
Timothy Charles Robert Noel Bentinck, 12th Earl of Portland, Graf Bentinck und Waldeck Limpurg (b. 1953).
Graf Bentinck, Holy Roman Empire (1732) Sovereign Lord of Kniphausen and Varel (1754-1807)
William Bentinck, 1st Graf Bentinck (1704-1774), younger son of William Bentinck, 1st Earl of Portland, married the daughter of the last Count of Aldenburg.
Christian Frederick Anthony Graf Bentinck und Aldenburg (1734-1768), Sovereign Lord of Kniphausen and Varel in 1754. Married Lady Ursula Christine de Reede-Ginkel, daughter of 2nd Earl of Athlone.
William Gustavus Frederic Bentinck, 2nd Graf Bentinck und Aldenburg (1762-1835), Sovereign Lord of Kniphausen and Varel. This small state was mediatised in 1807 and finally incorporated into Oldenburg in 1854.
William Christian Frederick Bentinck, 3rd Graf Bentinck (1787-1855), in 1845 the German Diet recognised the right of the Counts Bentinck to the dignities and privileges of the mediatised Houses of Germany and are styled Illustrious Counts. Son of Major General John Bentinck and Lady Jemima de Reede-Ginkel, daughter of 5th Earl of Athlone.
Lt.-Gen. Charles Anthony Ferdinand Bentinck, 4th Graf Bentinck (1792-1864), in 1888 his descendants were all granted permission to use the Countly title in the United Kingdom. Knight Commander,Teutonic Order.
Lt.-Col. Henry Charles Adolphus Frederick William Bentinck, 5th Graf Bentinck (1846-1903), in 1874 he renounced his title as reigning count. Knight Commander,Teutonic Order.
William Charles Philip Otho Aldenburg-Bentinck, 6th Graf Bentinck (1848-1912)
William Frederick Charles Henry Bentinck, 7th Graf Bentinck (1880-1958)
Earls of Oxford and Mortimer (1711-1853)
Robert Harley, 1st Earl of Oxford and Mortimer and Baron Harley of Wigmore KG (1661–1724)
Edward Harley, 2nd Earl of Oxford and Mortimer (1689–1741), married Lady Henrietta Cavendish Holles (1694-1755), only daughter and heir of the 1st Duke of Newcastle and his wife, the former Lady Margaret Cavendish, daughter of the 2nd Duke of Newcastle-upon-Tyne.
Edward Harley, 3rd Earl of Oxford and Mortimer (1699–1755)
Edward Harley, 4th Earl of Oxford and Mortimer (1726–1790)
Edward Harley, 5th Earl of Oxford and Mortimer (1773–1849)
Alfred Harley, 6th Earl of Oxford and Mortimer (1809–1853)
Earls of Athlone, in the Peerage of Ireland (1692-1844)
Godert de Ginkell, 1st Earl of Athlone, Baron Aghrim, Baron van Reede in the Netherlands (1630–1703)
Frederick Christian de Ginkell, 2nd Earl of Athlone (1668–1719)
Godert Adrian de Ginkell, 3rd Earl of Athlone (1716–1736)
Fredrick Wiliam de Ginkell, 4th Earl of Athlone (1717–1747)
Frederick Christian Rhynhart de Ginkell, 5th Earl of Athlone (1743–1808)
Frederick William de Ginkell, 6th Earl of Athlone (1766–1810)
Renaud Diederick James de Ginkell, 7th Earl of Athlone (1773–1823)
George Godert Henri de Ginkell, 8th Earl of Athlone (1820–1843)
William Gustaf Frederick de Ginkell, 9th Earl of Athlone (1780–1844)
Joan Canning nee Scott, 1st Viscountess Canning (1777–1837), she was the younger daughter of General John Scott and married George Canning, (1770–1827) Prime Minister of the United Kingdom in 1827. She was raised to the Peerage of the United Kingdom in honour of her husband.
Charles John Canning, 1st Earl Canning, 2nd Viscount Canning KG (1812–1862)
Viscount Stratford de Radcliff (1852–1880)
Stratford Canning, 1st Viscount Stratford de Redcliffe (1786-1880), first cousin of George Canning (1770–1827)
Barons Garvagh, in the Peerage of Ireland (1818)
George Canning, 1st Baron Garvagh (1778–1840), first cousin of George Canning, (1770–1827)
Charles Henry Spencer George Canning, 2nd Baron Garvagh (1826–1871)
Charles John Spencer George Canning, 3rd Baron Garvagh (1852–1915)
Leopold Ernest Stratford George Canning, 4th Baron Garvagh (1878–1956)
George Canning, 5th Baron Garvagh (b. 1920)
Marquess of Clanricarde (1825-1916)
Ulick de Burgh, 1st Marquess of Clanricarde, 14th and 2nd Earl of Clanricarde KP (1802–1874), married the Hon. Harriet Canning (1804–1876), daughter of George Canning, (1770–1827) and Joan Canning nee Scott, 1st Viscountess Canning (1777–1837)
Hubert de Burgh-Canning, 2nd Marquess of Clanricarde, 15th and 3rd Earl of Clanricarde (1832–1916)