Empress Lü Zhi
The Wai family, being the largest family, is thought to be the direct descendants of the famous founder general of the Han Dynasty, Han Xin, who purportedly fled there to escape executions ordered by Emperor Gao of Han's empress Empress Lü Zhi. The Han descendants changed their surname into Wai by splitting the word Han () in two halves and took up the character on the right hand side.