Dai (Chinese: 代; pinyin: Dài) was a short-lived state from 227 BC to 222 BC during the Warring States period. Prince Zhao Jia, older brother of King Youmiu of Zhao, fled with the remnant forces to the former location of Dai after the Conquest of Zhao and proclaimed himself "King of Dai". It was conquered in the year 222 BC by Qin.
References
Dai (Warring States period) Wikipedia(Text) CC BY-SA