Feng Hong
In spring 436, Feng Hong sent messengers to Northern Wei to offer tributes, and declaring that Feng Wangren would arrive briefly. Emperor Taiwu, not believing in Feng Hong, refused the overture and prepared another attack. By summer 436, Northern Wei and Goguryeo forces both arrived at Helong. Because the people largely were weary about relocating to Goguryeo, the official Guo Sheng (郭生) opened the city gates and tried to surrender, but Northern Wei forces thought it was a trap and did not aid him, and Feng Hong killed Guo in battle. Meanwhile, the Goguryeo forces pillaged the city, and then escorted Feng Hong and his people to head east, after Feng Hong set fire to the palace. Northern Yan was now at its end, as Feng Hong no longer had any territory of his own.