魏徴
After Emperor Taizong took the throne, he created Wei the Baron of Julu. Later in 626, when Emperor Taizong buried Li Jiancheng and Li Yuanji with honors due imperial princes, Wei Zheng and Wang Gui requested permission to attend the funeral procession. Emperor Taizong agreed, and further ordered that all officials who served on Li Jiancheng's and Li Yuanji's staffs to attend the funeral procession.