Background
Bentinck was the son of Vice-Admiral William Bentinck, son of Captain John Bentinck, son of Willem Bentinck van Rhoon, younger son of William Bentinck, 1st Earl of Portland.
Bentinck was the son of Vice-Admiral William Bentinck, son of Captain John Bentinck, son of Willem Bentinck van Rhoon, younger son of William Bentinck, 1st Earl of Portland.
His mother was Lady Frances Augusta Eliza, daughter of Charles Pierrepont, 1st Earl Manvers. He held that seat until he stood down at the 1865 general election, but returned to Parliament at an unopposed by-election in 1871. He resigned from the Commons in 1884.
He also served as a Deputy Lieutenant and Justice of the Peace for Norfolk.
16th United Kingdom Parliament. 17th United Kingdom Parliament. 18th United Kingdom Parliament.
20th United Kingdom Parliament.
21st United Kingdom Parliament. 22nd United Kingdom Parliament]
After unsuccessfully contesting a by-election in 1843 for the borough of Kendal, Bentinck was elected to the House of Commons at his next attempt, when he was returned unopposed at the 1852 general election as one of the two Members of Parliament (MPs) for the Western division of Norfolk.