Li Xiaogong (李孝恭) (591–640), formally Prince Yuan of Hejian (河間元王), often referred to by his earlier title as Prince of Zhao Commandery (趙郡王), was an imperial prince and general of the Chinese dynasty Tang Dynasty. He was a son of a cousin of the founding emperor Emperor Gaozu and served as a major general during Emperor Gaozu's reign, defeating the major competitor Xiao Xi the Emperor of Liang and the rebel general Fu Gongshi the Emperor of Song. He was one of the few generals of early Tang who distinguished himself without having first served under Emperor Gaozu's son Li Shimin (the later Emperor Taizong).
Read more about Li Xiaogong: Background, Campaign Against Xiao Xian, Campaign Against Fu Gongshi, Later Life