Sun Chuyue later was promoted, during the reign of Emperor Taizong's son and successor
Emperor Gaozong, to be
Zhongshu Sheren (), one of the mid-level officials at the legislative bureau of government (中書省,
Zhongshu Sheng). That year, the head of the legislative bureau, the
chancellor Du Zhenglun, requested that one more official be commissioned as
Zhongshu Sheren, but Emperor Gaozong responded, "Sun Chuyue is enough to accomplish the task. Why do we need more?" Later, he participated in compiled the imperial archives of Emperor Taizong's reign, and after the archives were compiled, he was given an award of silk. He was later promoted to be
Zhongshu Shilang (), the deputy head of the legislative bureau. He was still in that post around new year 665 (but now with the title of
Xi Tai Shilang (), as the
Zhongshu Sheng was renamed to
Xi Tai during the meantime) when he was given the designation
Tong Dong Xi Tai Sanpin (), making him a chancellor
de facto. Four months later, however, he, along with his colleague
Le Yanwei, were no longer chancellors. It was further said that later, for unspecified reasons, he was demoted to be the deputy minister of ceremony. In 664, he was made the deputy principal of the imperial university, when he requested to retire on basis of old age. He died soon thereafter. == Notes ==