Feizi (; died 858 BC), also known as Qin Ying and Ying Feizi, was the founder of the state of Qin.
Mythical origin of Qin
According to the founding myths of Qin recorded in the Records of the Grand Historian by Han dynasty historian Sima Qian, Feizi descended from the mythical Yellow Emperor and his grandson and successor Zhuanxu. Zhuanxu's granddaughter Nüxiu (女脩) gave birth to Daye (大業) after swallowing the egg of a swallow. Daye's son Boyi (伯益) was awarded the ancestral name Ying (嬴) by the mythical Chinese ruler Shun.
Founding of Qin
Feizi lived in Xichui and was a skilled horse breeder.
This was the beginning of the State of Qin that would, over six centuries later, conquer all of the other Zhou states and unify China under the rule of Qin Shi Huang, the First Emperor of the Qin dynasty.