. . . "Letters on the Sixth Crusade" . . . . "Sixth Crusade" . "Crusade" . "Sixth" . . . "Aftermath of the Sixth Crusade" . . . . . . . "for the crusade" . . "Crusaders" . . "the Sixth" . "Treaty of Jaffa" . . . . . "Diplomatic Crusader victory" . . "* Jerusalem given back to the Crusaders" . . . . . . . . . "Teutonic Knights" . . "AyyubidsofDamascus" . . . "negotiations" . "crusade" . . . . . . . "AyyubidsofEgypt" . "Crusade of Frederick II, 1228\u20131229" . "Frederick\u2019s crusade" . . . "Holy Roman Empire" . . "Kingdom of Sicily" . "San Germano" . "Sixth Crusade" . . . . "previous crusade" . "6th" . . . . .