Also in spring 434, after initially refusing a peace offer from Northern Yan, Emperor Taiwu accepted after Feng Hong made an offer to give his daughter to Emperor Taiwu as a consort and returned the detained Northern Wei ambassador Huniuyu Shimen (忽忸于什門), who had been imprisoned by Feng Hong's brother and predecessor Feng Ba in 414 after being commissioned by Emperor Mingyuan. Emperor Taiwu, however, ordered Feng Hong to also send his crown prince Feng Wangren (馮王仁) to Pingcheng to meet him, and Feng Hong refused, ending the brief peace, and by summer 434, Northern Wei resumed its periodic attacks on Northern Yan. Meanwhile, around this time, he also took the sister of Rouran Chilian Khan Yujiulü Wuti as an imperial consort and married his sister or cousin Princess Xihai to Yujiulü Wuti, to further cement the peaceful relations.