Yelü Lübugu, noble title Princess of Yan State (燕國公主), was a princess of the Liao dynasty of China. She was the first daughter of Emperor Taizong and the wife of chancellor Xiao Siwen. She bore Xiao Siwen the three Xiao Sisters: Xiao Hunian, Lady Xiao and Xiao Yanyan. However, she died from her illness. Her youngest daughter Xiao Yanyan married Emperor Jingzong and in 969 and became empress consort. The Xiao family was the consort kin of the Liao dynasty, with all future empresses and imperial brides originating from this clan.

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