In the summer of 1029, Da Yanlin rebelled at the Eastern Capital (Liaoyang), where he had served as a general.
He imprisoned minister Xiao Xiaoxian and his wife, and killed the tax commissioners and chief military commander.
Da declared himself the Tianxing Emperor (天興皇帝) of his own Xingliao dynasty (興遼國/흥료국 and proclaimed the era name "Tianqing" (天慶).
[2] In 1030, Xingliao and its Jurchen and Goryeo allies were defeated by a Liao pincer attack led by Punu.
[1] One of Da Yanlin's officers, Yang Xiangshi, betrayed him and opened the Eastern Capital's gates to the Khitans.