A History of the Crusades, Volume 3: The Kingdom of Acre (Runciman)

Steven Runciman's third and final volume of his classic three volume narrative history of the Crusades, published by Cambridge University Press in 1954, covering the crusader states from the aftermath of the Second Crusade through the fall of Acre in 1291, including the Third Crusade's 1189 to 1191 siege of Acre. Runciman documents Richard the Lionheart's execution of roughly 2,700 Muslim prisoners at Ayyadieh outside Acre on 20 August 1191, after negotiations over Saladin's ransom and prisoner exchange terms broke down, a figure since repeated across the secondary literature on the siege. Its strength is a monumental, still widely cited narrative synthesis that remains the standard general reference many later crusades historians write against. Its limit is its age: later scholarship, including work using a wider range of Arabic sources, has revised some of Runciman's interpretive judgments about crusader and Muslim conduct, though the Acre execution's approximate scale is not among the figures later research has overturned.