By the late seventh century AH/thirteenth century AD, the Mamluk sultans Baybars (658–676 AH/1260–1277 AD) and Qalawun (678–689 AH/1279–1290 AD) had significantly diminished the remaining territories of the “crusader states”, established by the first crusaders (1096–1099) along the Eastern Mediterranean coast. Only Acre, Athlit, Beirut, Haifa, Tortosa, Tyre, and a handful of rural estates remained under Frankish control. These remaining territories were protected by a truce renewed in 682/1283 between Qalawun and Frankish leaders: Odo Poilechien, the bailiff of Charles I of Anjou (1266–1285), and the Masters of the Hospitaller and Templar military orders. However, the validity of this truce was called into question in 689/1290, when a party of Muslims were attacked in Acre. Upon hearing of the incident, Qalawun convened a war council to deliberate whether the Franks had indeed broken the truce. A chancery official known as Shafi‘ ibn ‘Ali (d. 730/1330) was present at the council. He included two short recollections of the conversation that took place between the sultan and his advisors in his two regnal biographies of the sultans Qalawun and Baybars, produced about twenty years apart. However, Shafi‘ ibn ‘Ali’s two accounts exhibit significant discrepancies. In addition, Arabic, Latin, and Old French also diverge on how events unfolded in the city. This presentation will revisit these accounts, focusing on Shafi‘ ibn ‘Ali’s recollection (or reconstruction) of events, arguing that Shafi‘ ibn ‘Ali’s earlier biography of Qalawun presents a more accurate version, while his later version reflects a recalibration intended to reinforce the legal basis for the agreement’s termination and highlight the author’s supporting role. This presentation will also attempt to offer a new perspective on the factors contributing to the sultan’s decision, taking into consideration new scholarship on the Mamluk chancery, archival practices, and Mediterranean diplomacy.