佛祖歷代通載 19.42

19.42

遼天祚立諱延禧（道之孫。秦王元吉之子。淫縱失道。荒于畋獵。女真有禽曰海東青玉爪。善捕天鵝。一飛千里。歲命其國人窮取以獻。人怨遂叛。政和中童貫與遼叛人馬植謀約女真攻遼。天祚逃于夾山。捨之削封海濱王。送長白山東築城居之。遂亡）。

Tianzuo of Liao ascended the throne, with the taboo name Yanxi (the grandson of Dao[zong] and son of Prince Yuangji of Qin. He was dissolute, lost the Way, and was addicted to hunting. The Jurchen had a bird called the Haidongqing falcon with jade claws, skilled at capturing swans and flying a thousand li in one flight; each year he ordered their people to seek them out exhaustively to present as tribute. The people were resentful and consequently rebelled. During the Zhenghe era, Tong Guan conspired with the Liao turncoat Ma Zhi to form a pact with the Jurchen to attack Liao. Tianzuo fled to Jiashan; [the Jin] spared him, stripped his rank, made him King of Haibin, and sent him east of Mount Changbai to build a city and dwell there. Liao was thus extinguished).