Also referred to as Duke Ding'an, a powerful grand-uncle of the Emperor who supported him since his ascension. He has been grieving the late Lady Yingwu for ten years, believing she died on purpose in the Battle of Yagu Valley to avoid seeing him. He recently argued with the Emperor over troop deployment to Qingzhou after an earthquake. He is testing the Emperor to see if he can become a great ruler independent of his influence.