第七次十字军东征（1248年－1254年），由法国国王路易九世发动，教皇英诺森四世支持，远征埃及。十字军很快便攻取了埃及杜姆亚特，但却陷入被瘟疫折磨的境况。熬过瘟疫后，十字军进攻开罗，但是被由将领拜巴尔率领的钦察奴隶骑兵（马穆路克）打败。结果，路易九世的弟弟阿图瓦伯爵被杀，路易九世在曼苏拉（Mansura）被俘。

1250年，当时的苏丹被其马穆路克军官推翻，故法国以大笔赎金赎回路易九世。但直到1254年，路易九世和与他的士兵才能被释放回国。

The Seventh Crusade was a crusade led by Louis IX of France from 1248 to 1254. Approximately 800,000 bezants were paid in ransom for King Louis who, along with thousands of his troops, were defeated and captured by the Egyptian army led by the Ayyubid Sultan Turanshah supported by the Bahariyya Mamluks led by Faris ad-Din Aktai, Baibars al-Bunduqdari, Qutuz, Aybak and Qalawun.