Sun Lang, courtesy name Zao'an, was a son of the Chinese warlord Sun Jian, who lived during the late Eastern Han dynasty. He was a half-brother of Sun Quan, the founding emperor of the state of Eastern Wu in the Three Kingdoms period. Despite the victory, Sun Quan was furious that his half-brother had nearly brought destruction upon the state and he punished Sun Lang heavily. Sun Lang had all his military ranks and appointments stripped off, was disowned from the Sun family and forced to change his name to Ding Lang (丁朗). He spent the rest of his life under house arrest.