విలియం బెంటింక్ తండ్రి పేరు ఏమిటి?
Bentinck was born in Buckinghamshire, the second son of Prime Minister William Bentinck, 3rd Duke of Portland, and Lady Dorothy, only daughter of William Cavendish, 4th Duke of Devonshire. Upon the third duke's marriage to Lady Dorothy, he changed the family name to Cavendish-Bentinck.
William Bentinck