Yelu Deguang

Yelu Deguang succeeded his father, Abaoji, as the second emperor of the Liao dynasty. His reign marked the continuation of Khitan expansion into northern China and the consolidation of the Liao state.

Yelu Deguang led a Liao army south and captured Kaifeng, the capital of the Later Jin dynasty. He briefly held the city, but was forced to withdraw due to supply issues and resistance, marking the peak of Liao expansion into central China.

After withdrawing from Kaifeng, Yelu Deguang died suddenly during the retreat. His death led to a succession crisis within the Liao dynasty, as his nephew Yelu Ruan seized power.