BiographyArthur Cavendish-Bentinck was born 9 May 1819 in London, England, United Kingdom to William Charles Augustus Cavendish-Bentinck (1780-1826) and Anne Wellesley (c1788-1875) and died 11 December 1877 of unspecified causes. He married Elisabeth Sophia Hawkins-Whitshed (c1830-1858) 18 February 1857 . He married Augusta Mary Elizabeth Browne, 1st Baroness Bolsover (1834-1893) 10 June 1862 . Notable ancestors include Charlemagne (747-814), Henry II of England (1133-1189), William I of England (1027-1087), Hugh Capet (c940-996), Rurik (c832-879), Alfred the Great (849-899). Ancestors are from the United Kingdom, the Netherlands, Ireland, France, England, Germany, Russia, Ukraine, Israel, Spain, Portugal, Belgium, Byzantium, Hungary, Belarus, the Byzantine Empire, Italy.
|Offspring of Arthur Cavendish-Bentinck and Elisabeth Sophia Hawkins-Whitshed (c1830-1858)|
|William Cavendish-Bentinck, 6th Duke of Portland (1857-1943)||28 December 1857||26 April 1943|| Winifred Anna Dallas-Yorke (1863-1954)|
|Offspring of Arthur Cavendish-Bentinck and Augusta Mary Elizabeth Browne, 1st Baroness Bolsover (1834-1893)|
|Henry Cavendish-Bentinck (1863-1931)|| |
|William Augustus Cavendish-Bentinck (1865-1903)|| |
|Charles Cavendish-Bentinck (1868-1956)|| |
|Ottoline Violet Ann Cavendish-Bentinck (1873-1938)||16 June 1873||21 April 1938|| Philip Edward Morrell (1870-1943)|