Henry Percy, 11th Duke of Northumberland

Henry Percy, 11th Duke of Northumberland FRS (1 July 1953 – 31 October 1995) was a British peer, heir to the dukedom of Northumberland and a godchild of Queen Elizabeth II.

Educated at Eton College and Christ Church, Oxford, he was notable in his lifetime for planting many trees at Syon House (the Ducal residence); for an unsuccessful foray into film-making both in front of and behind the camera; for romantic relationships with Naomi Campbell's mother Valerie and with American actress Barbara Carrera; and for excessive and adventurous drug taking.

It has been reported that Percy was diagnosed with chronic fatigue syndrome (CFS), although sources are scant. He never married and died aged 42 from heart failure after an overdose of amphetamines.