In 1244, he was created Constable of Jerusalem, but was subordinate to Walter IV of Brienne at the Battle of La Forbie.
In 1246, Henry I of Cyprus, then Regent of Jerusalem, created him Lord of Tyre as a reward for his services to the baronial party.
Philip was married a second time, after 1240, to Maria of Antioch-Armenia,[2] the elder daughter of Raymond-Roupen of Antioch and hence Lady of Toron and pretender of Armenia.
He joined the Seventh Crusade, and was employed as the ambassador of Louis IX of France in negotiations for a truce and retreat from Damietta.
During that conflict, he attempted to relieve the Genoese in Acre in 1258, but was repulsed, which helped decide the struggle for the Venetians.