非子 / Qin Feizi
非子 / Qin Feizi appears in 《资治通鉴·周纪》10丨 以家族单位 有蚂蚁吃大象的精神（1） inside the source’s 秦国 origin story. The episode says 周孝王 valued Feizi’s skill with horses, assigned him land at Qin, and allowed him to continue the Ying family sacrifices.
The source stresses that this did not yet make Qin a full state. Feizi’s Qin is still an attached fief or dependent status, which later makes 秦襄公’s promotion by 周平王 politically important.
《资治通鉴·秦纪》99-3｜荀子兵法里藏着人性的秘密 briefly reuses Feizi inside the 荀子 and 临武君 debate setting. The host pairs Feizi with 造父 to explain the shared horse-service and kinship memory behind Qin and Zhao origins: Zaofu marks the Zhao line, while Feizi’s horse-raising service becomes the Qin fief origin.