褚遂良
After Emperor Gaozong took the throne, he changed Zhangsun's honorific title to "Taiwei" (太尉), also one of the Three Excellencies, and ordered that he continued to be in charge of all three bureaus, although Zhangsun declined the responsibility over the executive bureau. Emperor Gaozong also gave him the chancellor "de facto" designation of "Tong Zhongshu Menxia Sanpin" (同中書門下三品). Early in Emperor Gaozong's reign, it was said that, while there were other men with chancellor designations, Zhangsun Wuji and Chu Suiliang controlled the government, but that they served faithfully and were extending the efficient governance that Emperor Taizong instituted during his "Reign of Zhen'guan." However, perhaps challenging Zhangsun's authority and/or faithfulness, the Tufan king Songtsän Gampo wrote a letter to Zhangsun, stating, "The Son of Heaven has just taken the throne. If there are unfaithful subjects among the officials, I will lead an army to the capital to destroy them." However, Emperor Gaozong trusted both Zhangsun and Chu greatly, and in 650, when a commoner named Li Hongtai (李弘泰) accused Zhangsun of treason, Emperor Gaozong had Li Hongtai immediately beheaded.