Ji You 季友and the House of Jisun 季孫(www.chinaknowledge ...

Ji You 季友 "Youngest Brother You" (died 644 BCE), also called "Ducal Son" Gongsun You 公子友, Gongsun Ji You, 公子季友 or Cheng Ji 成季 "Perfected Younger Brother", or Jizi 季子 "Viscount Youngest Brother", was a son of Duke Huan of Lu 魯桓公 (r. 712-694) and the ancestor of the lateral house