William Herbrand Sackville, 10th Earl De La Warr DL (/ˈdɛləwɛər/ 16 October 1921 – 9 February 1988) was a British peer. He inherited the earldom on 28 January 1976 on the death of his father Herbrand Edward Dundonald Brassey Sackville, 9th Earl De La Warr. Earl De La Warr was educated at Eton College, and fought in World War II, attaining the rank of captain in the Parachute Regiment of the British Army. After the war, on 18 May 1946, he married Anne Rachel Devas (grandniece of a former Prime Minister, Sir Henry Campbell-Bannerman). They had three children: