Levant February – Mamluk forces led by Sultan Baibars continue their territorial expansion in western Syria and appear before Safita Castle (called the White Castle) built by the Knights Templar. After a heroic defense, the small garrison is advised by Grand Master Thomas Bérard to surrender. The survivors are allowed to withdraw to Tortosa. April 8 – Siege of Krak des Chevaliers: Mamluk forces under Baibars capture the strategically important castle Krak des Chevaliers from the Knights Hospitaller. During the siege the defenders receive a letter, supposedly from Grand Master Hugues de Revel, to surrender the castle. Under safe-conduct the Hospitallers retreat to Tripoli.Kennedy, Hugh (1994). Crusader Castles, pp. 148–150. Cambridge: Cambridge University Press. . May–June – Baibars conducts an unsuccessful siege of Tripoli, and also fails in an attempted naval invasion of Cyprus. He sends an Egyptian fleet (some 20 ships) to Limassol, while King Hugh III of Cyprus ("the Great") has left for Acre. Due to bad weather and seamanship, 11 ships run aground and the crews fall into the hands of the Cypriots.Steven Runciman (1952). A History of The Crusades. Vol III: The Kingdom of Acre, pp. 278-80. . May 9 – English prince the Lord Edward and King Charles I of Anjou arrive in Acre, with a fleet of 30 galleys, starting Lord Edward's crusade (the Ninth) against Baibars. During this crusade they are unable to capture any territory and peace is quickly negotiated with the Mamluk Sultanate. Baibars consolidates his occupation in Syria. October – Abaqa Khan, Mongol ruler of the Ilkhanate, detaches some 10,000 horsemen from Anatolia to support the Lord Edward in his war against Baibars. They invade Syria and defeat Mamluk forces who protect the region around Aleppo. The Mongols plunder the cities of Maarat al-Numan and Apamea.
Levant February – Mamluk forces led by Sultan Baibars continue their territorial expansion in western Syria and appear before Safita Castle (called the White Castle) built by the Knights Templar After a heroic defense the small garrison is advised by Grand Master Thomas Bérard to surrender The survivors are allowed to withdraw to Tortosa April 8 – Siege of Krak des Chevaliers Mamluk forces under Baibars capture the strategically important castle Krak des Chevaliers from the Knights Hospitaller During the siege the defenders receive a letter supposedly from Grand Master Hugues de Revel to surrender the castle Under safe-conduct the Hospitallers retreat to TripoliKennedy Hugh (1994) Crusader Castles pp 148–150 Cambridge Cambridge University Press  May–June – Baibars conducts an unsuccessful siege of Tripoli and also fails in an attempted naval invasion of Cyprus He sends an Egyptian fleet (some 20 ships) to Limassol while King Hugh III of Cyprus ("the Great") has left for Acre Due to bad weather and seamanship 11 ships run aground and the crews fall into the hands of the CypriotsSteven Runciman (1952) A History of The Crusades Vol III The Kingdom of Acre pp 278-80  May 9 – English prince the Lord Edward and King Charles I of Anjou arrive in Acre with a fleet of 30 galleys starting Lord Edward's crusade (the Ninth) against Baibars During this crusade they are unable to capture any territory and peace is quickly negotiated with the Mamluk Sultanate Baibars consolidates his occupation in Syria October – Abaqa Khan Mongol ruler of the Ilkhanate detaches some 10000 horsemen from Anatolia to support the Lord Edward in his war against Baibars They invade Syria and defeat Mamluk forces who protect the region around Aleppo The Mongols plunder the cities of Maarat al-Numan and Apamea