2 AS History resources Search within results Go How ratings and recommendations work Apply Filter resourcesClear all filtersLevelClear filter AS SubjectClear filter History Exam board AQA TopicClear filter The crusades Resources Compare and contrast table Grid Revision Cards How important was Muslim disunity to the survival of Crusader states? AS, History Grid 3.5 / 5 Crusader Princes AS, History 1 revision cards Search again