『The Crusades』要約

Thomas Asbridge’s *The Crusades: The Authoritative History of the War for the Holy Land* is a single-volume narrative covering the two-century struggle between Latin Christendom and the Islamic Near East, from Pope Urban II’s appeal at Clermont in 1095 to the fall of Acre in 1291. Asbridge frames the movement not as one continuous war but as two distinct phases separated by the loss of Jerusalem: a First Crusade that culminated in the capture of the holy city in 1099, followed by a Second Crusade born of that settlement’s fragile defence and the later campaigns of Saladin, Richard the Lionheart, and the Mamluk sultan Baybars. The book’s distinctive contribution is its sustained double perspective. Asbridge alternates between Christian and Muslim sources—Latin chronicles alongside Ibn al-Athir, Ibn Munqidh, and others—to show how each side understood jihad, holy war, and the legitimacy of violence. He gives comparable weight to familiar protagonists such as Bohemond, Nur al-Din, and Frederick Barbarossa, and to the settlers, merchants, and Frankish barons of Outremer who built the crusader states. A recurring argument concerns memory: the First Crusade’s improbable success shaped later expectations, while Saladin’s recapture of Jerusalem in 1187 became a template for Islamic revival. Asbridge also treats the so-called minor crusades and the broader theatres—the Reconquista, the Baltic campaigns, and the Albigensian Crusade—as part of the same devotional and political phenomenon. His underlying claim is that the crusading ideal endured because it fused pilgrimage, penance, and warfare into a single act, and that its legacy was as contested in the medieval present as it is now. The result is a detailed, source-driven account rather than a polemic.