Gilles von Saumur was a 13th-century Angevin cleric who served as the archbishop of Tyre from 1253 until his death in 1266. A prominent figure within the Catholic Church, he held the position of the first archbishop of Damietta and played a significant role in the administration of the church in Jerusalem. During his career, he participated in the Seventh Crusade and acted as a vital mediator within the Kingdom of Jerusalem, while also using his influence to preach for the launch of new crusading efforts.