Prince or King of Dai was an ancient and medieval Chinese title.
King of Dai is sometimes used to describe the heads of the
Baidistate of
Dai north of the
Zhou Kingdom that was conquered by the Zhao clan of
Jin. It was used as the title for the Zhao successor state headed by
Zhao Jia, and for one of the
Eighteen Kingdoms established by
Xiang Yu after the
fall of Qin.
The title King or Prince of Dai was subsequently used as an
appanage of imperial Chinese dynasties, in reference to the
Commandery of Dai that existed from the state of Zhao until the
Sui. It was also sometimes used to describe rebellious or independent kingdoms in the same area.