Page "Dongdan Kingdom" Paragraph 2

However, political tension soon evolved between Yelü Bei and his younger brother Yelü Deguang, who took the imperial throne of Khitan after their father Yelü Abaoji died, en route to his homeland from a relatively successful campaign against the Later Tang Dynasty.

The new emperor ordered his elder brother to move his capital from Huhan in Eastern Manchuria to Liaoyang in Western Manchuria.