Crusades-Encyclopedia
Background to the Crusades
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Primary Sources Related Links
Secondary Sources
Alexius I Comnenus Letter of Alexius to Count Robert of Flanders [c. 1088-1099] Crusades-Encyclopedia [Full text] Link to this website's section on the First Crusade
Dr. Paul Crawford: The Crusades: Political and Military Background ORB: The Online Reference Book for Medieval Studies
Link to this website's section on the Arab Conquests
Pope Gregory VII Call for a Crusade [1074] Crusades-Encyclopedia
Dr. Paul Crawford The Crusades: Additional Background ORB: The Online Reference Book for Medieval Studies Link to this website's section on the Reconquista
Pope Leo IV Forgiveness of Sins for Those Who Dies in Battle with the Heathen [847-855] Crusades-Encyclopedia
Brian Irby From Peace to War: The Formulation of the Idea of Crusade Central Arkansas Historical Review
Dr. Paul Magadalino The Byzantine Background to the First Crusade DeReMilitari.Org