Then he overreached himself.In 1163, he attempted to firmly define his rights as feudal overlord of the Welsh princes by demanding oaths of vassalage from them at the Council of Woodstock.

• 这下他可是走向人生巅峰了，在1163年，他斩钉截铁地要把自己作为封建领主的要求凌驾于威尔士亲王们至上，要求他们在伍德斯托克会晤中宣誓称臣。