John I of Aumale

John I of Ponthieu (c. 1255–1302), Count of Aumale, was the son of Count Ferdinand II and Laura of Montfort, and a grandson of King Ferdinand III of Castile. After his father died in 1260 he inherited Aumale and Ponthieu, ruling with his grandmother until 1279. Edward I then claimed Ponthieu; John resisted until bought off in 1293, keeping Aumale.

By his wife Ida of Meulan he left his heir John II. He was killed fighting for France at the Battle of the Golden Spurs in 1302.