Stephen of Aumale

Stephen of Aumale (c. 1070–1127), count of Aumale and lord of Holderness, was the only son of Odo of Champagne and Adelaide, sister of William the Conqueror, and thus cousin to William II and Henry I of England. He succeeded his mother as count before 1089.

In 1095 rebels under Robert de Mowbray planned to put him on the English throne, but the plot failed and his father lost their English lands. Stephen joined the First Crusade in 1096 and recovered Holderness in 1102. He supported Henry against Robert in 1104, backed William Clito's revolt in 1118 and submitted in 1119. He died in 1127.