公元1323年(元英宗至治三年)阴历八月初四夜,年仅二十一岁的元英宗正在上都以南三十里的南坡行帐中挑灯看书。忽然,帐外一阵混乱,隐约听得丞相拜住的怒斥声。元英宗披衣欲起,未及唤人,御帐门却被人踹开,一身鲜血的元英宗大舅哥铁失率数人闯入。还未等元英宗开口叱责,他当胸一刀, Year 1323 (Yuan Yingzong to rule three years) Lunar August and early April four nights, only 21-year-old Yuan Yingzong is on the southern slopes of the south all the way to pick light reading. Suddenly, a while outside the confusion, vaguely heard the prime minister worship rage. Yuan Yingzong poncho, less than call people, the door has been opened the door, a bloody Yuan Yingzong brother iron loss rate of several people broke into. Has not waited for Yuan Yingzong not equal element, he was a knife,