She was born to Princess Shouning, who was the niece of Chengzong. She married Khutughtu Khan before he became emperor.

She approved of the famous cook book of Huou, Yin-shanZhengyao (1330).

After the death of her spouse, the execution of Babusha, in parallel with the exile of Toghon Temur to Korea in May 1330, were both ordered by Budashiri, later Empress of China as the wife of Jayaatu Khan Tugh Temür, to secure the succession of Aratnadara. She was executed after having accused Budashiri of staging a coup against her late husband.

出生年份不详，侍奉周王和世㻋（明宗）于潜邸，仁宗延佑三年（1316年）周王出镇云南，中途在关中举兵，事败，逃往察合台汗国，八不沙未随，留居京师。泰定帝即位后，八不沙被护送至周王处，于泰定三年（1326年）生子懿璘质班（元宁宗）。天历二年（1329年），周王和世㻋即位为明宗，立为皇后。设立宁徽寺，掌管明宗皇后八不沙的宫事，以万锭宝钞、币帛二千匹，来供后宫费用。八月，明宗暴亡。文宗即位后，继掌宫事。十一月，八不沙请即位的元文宗为明宗资冥福，元文宗命帝师率诸僧在大天源延圣寺作佛事七日，道士在玉虚、天宝、太乙、万寿四宫，及武当山、龙虎山建醮。至顺元年（1330年），元文宗敕令有司供给八不沙等明宗的后宫二百匹币帛。文宗想要传位于自己的儿子，八不沙皇后遭构难。此年四月，八不沙被元文宗皇后卜答失里、宦者拜住所害。

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