William le Gros

William le Gros, or William of Aumale (died 20 August 1179), was Count of Aumale and Earl of York, the eldest son of Count Stephen of Aumale and Hawise de Mortimer. He fought for King Stephen at the Battle of the Standard in 1138 and was made Earl of York, then shared the king's defeat at Lincoln in 1141.

He founded Thornton and Meaux abbeys. Henry II seized his Scarborough Castle, built without permission during the Anarchy, and his wife Cicely, Lady of Skipton, brought him estates at Harewood. He left a daughter, Hawise, who inherited Aumale, and was buried at Thornton Abbey.