A member of parliament from 1859 to 1891, he served under Benjamin Disraeli as Parliamentary Secretary to the Board of Trade from 1874 to 1875 and as Judge Advocate General from 1875 to 1880.

[12] Add to this one match between two invitational teams – a Slow Bowlers XI featuring Bentinck versus a Fast Bowlers XI – and Cavendish-Bentinck played eleven games in total, scoring 66 runs at a low batting average of 5.50.

[17] He served in the second Conservative administration of Benjamin Disraeli as Parliamentary Secretary to the Board of Trade from 1874 to 1875 and as Judge Advocate General from 1875 to 1880.

[1][19] Apart from his legal and political career, Cavendish-Bentinck was a Trustee of the British Museum from 1875 until his death and a Justice of the Peace for Cumberland and Dorset.

[1][23] Together, they had two sons and two daughters:[24] In 1889, Cavendish-Bentinck was named by rentboy John Saul in his police statement as a client of the infamous male brothel at the heart of the Cleveland Street scandal.