abstract:Chu Suiliang (褚遂良) (597–658), courtesy name Dengshan (登善), formally Duke of Henan (河南公), was a chancellor of the Chinese dynasty Tang Dynasty, during the reigns of Emperor Taizong and Emperor Taizong's son Emperor Gaozong. He became increasingly trusted by Emperor Taizong toward the end of his reign and was charged with the responsibilities of serving as the imperial historian and providing honest advice.