Gongzi You (公子友), (died 796 BC), also known as Cao You (曹友), also known as Yan You (颜友), Cao surname, Yan clan, name: You (友), other name: Fei (肥), he was the founding monarch of Xiao Zhu, a vassal state of Western Zhou.
The descendants of Yan An [zh] were given the small regional state of Zhu during Zhou Dynasty.
Cao Yifu earned merits and was appointed ruler to the Ni (state), also known as Xiao Zhu.
[1] Zhu was then divided into three kingdoms.
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