 In 1268, the Makurian king, David I, overthrew the Mamluks' vassal and in 1272, raided the Mamluk Red Sea port of ‘Aydhab.Meanwhile, Louis IX of France launched the Eighth Crusade, this time targeting Tunis with the intention of ultimately invading Egypt.However, Louis IX died, allowing the Mamluks to refocus their efforts at further conquests of Crusader territories in Syria, including the County of Tripoli's Krak des Chevaliers fortress, which Baybars captured in 1271.