Line of descent of the Earls and Dukes of Portland
William Cavendish (1593-1676)
1st Duke of Newcastle upon Tyne
m Elizabeth Basset
Hans William Bentinck (1649-1709)
Created 1st Earl of Portland 1689
Henry Cavendish (1630-1691)
2nd Duke of Newcastle upon Tyne
m Frances Pierrepont
m (1) Anne Villiers
m (2) Jane Martha Temple
Margaret Cavendish (1661-1716)
m John Holles (1662-1711),
3rd Duke of Newcastle upon Tyne
(William) Henry Bentinck
(1682-1726)
2nd Earl of Portland
Created 1st Duke of Portland 1716
m Lady Elizabeth Noel
Henrietta Cavendish Holles
(1684-1755)
m Edward Harley,
2nd Earl of Oxford
Lady Margaret
Cavendish-Harley
(1715-1785)
m
William Bentinck
(1709-1762)
2nd Duke of Portland
William Bentinck (1704-1774)
1st Count Bentinck
m Countess Charlotte Sophia
von Aldenburg (1715-1800)
Christian F.A. Bentinck
(1734-1768)
From him descends Timothy
Bentinck, the current Earl of
Portland
From him descended
the Bentinck family of
Terrington St
Clement, Norfolk
William Henry Cavendish-Bentinck (1738-1809)
3rd Duke of Portland
m Lady Dorothy Cavendish
William Henry CavendishBentinck (1768-1854)
4th Duke of Portland
m Henrietta Scott
Lord William
Henry
CavendishBentinck
(1774-1839)
William John CavendishBentinck-Scott (1800-1879)
5th Duke of Portland
William Charles
Augustus CavendishBentinck (1780-1826)
m Anne Wellesley
John Albert
Bentinck
(1737-1775) m
Renira de Tuyll of
Serookskerken
(1744-1792)
Frederick CavendishBentinck (1781-1828)
From him descended the 8th
and 9th Dukes of Portland
Arthur Cavendish-Bentinck
(1819-1877)
m Elisabeth Sophia Hawkins Whitshed
William J.A.C.J. Cavendish-Bentinck (1857-1943)
6th Duke of Portland
m Winifred Anna Dallas-Yorke
William Arthur Henry Cavendish-Bentinck
(1893-1977)
7th Duke of Portland
m Ivy Gordon-Lennox
© Manuscripts and Special Collections, The University of Nottingham 2014