Eustace II of Boulogne accompanied William I of England (the Conqueror) during the Norman Conquest in 1066 and fought on his side at the Battle of Hastings. His son, Eustace III, was a major participant in the First Crusade with his younger brothers, Geoffrey and Baldwin (who later became king of Jerusalem). After Baldwin's death the throne was offered to Eustace, who was reluctant and declined; the throne was then offered to Geoffrey. Afonso (also King of Portugal) 1235-1253 from Dammartin became Count of Boulogne.