Lord Henry Cavendish-Bentinck

In 1880 he was granted the rank of a younger son of a duke on his half-brother's succession to the dukedom.

Cavendish-Bentinck held a commission in the Derbyshire Imperial Yeomanry, where he gained the rank of lieutenant-colonel.

He served in the Second Boer War in South Africa 1899–1900, where he was appointed to the Staff on 20 February 1900.

[1] Cavendish-Bentinck married, in 1882, Lady Olivia Caroline Amelia, daughter of Thomas Taylour, Earl of Bective, and granddaughter of the 3rd Marquess of Headfort.

She was known as Lady Henry Bentick, and was mentioned in despatches (29 November 1900) by Lord Roberts, Commander-in-Chief, for civilian services during the Second Boer War.