釋氏稽古略 4.288

4.288

In the Liao, in the spring, the first month, Lady Xiao, the empress of the Yan emperor, was in Yan. Hearing that the Jurchens had entered Juyong Pass, she led Xiao Gan and the carriage wagons out of the city at night, claiming to confront the enemy, but in truth fleeing. Reaching Songting Pass, they deliberated where to go. The Linya Yelü Dashi was a Liao man; he wished to return to Tianzuo. Xiao Gan, the Grand Prince of the Four Armies, was a Xi man; he wished to proceed to the Xi Prince's headquarters to establish a state. Xiao Bodie, the Commandant-驸马 of Xuanzong (the Prince of Yan, Chun), said: "Today we indeed ought to return to Tianzuo. However, with what face can we meet him?" The Linya ordered his attendants to drag him out and behead him, and issued an order throughout the army that anyone who dared express a dissenting opinion would be beheaded. Thereupon, the two armies of Liao and Xi drew up battle lines facing each other and separated. The Liao army followed the Linya, escorting Empress Xiao to return to Tianzuo at Mount Jia (in the seventh month they arrived at Mount Jia; Tianzuo ordered Empress Xiao and her nephew Changge to be executed, while pardoning the rest of their capital crime). The Xi and Bohai armies followed Xiao Gan (named Kuilibu) and remained at the Xi Prince's headquarters. Gan occupied the headquarters, established himself, usurpingly claimed the title of Sacred and Divine Emperor, titled the state Great Xi, and changed the reign era to Tianxing (also called Tiansi). In the seventh month, the Xi soldiers encountered the Jurchens and fought at Yaopu. The Xi suffered a great defeat. Xiao Gan was killed by his subordinate Degu (Liaozhi).