《明史·列传·卷三十六》
以府第所在的方位称杨士奇为西杨，杨荣为东杨，而杨溥曾自称自己的郡望是南郡，所以被称为南杨。
以居第目士奇曰 西杨 ，荣曰 东杨 ，而溥尝自署郡望曰南郡，因号为 南杨 。
Yang Shiqi was also called Western Yang based on the direction of his mansion, Yang Rong was called Eastern Yang, while Yang Pu once claimed that his origin was Nanjun, so he was called Southern Yang.