Wikipedia
Jochi
Jochi (, Züçi, , , ; also spelled Djochi, Jöchi and Juchi) (c. 1181 – February 1227) was the eldest son of Genghis Khan, and presumably one of the four sons by his principal wife Börte, though issues concerning his paternity followed him throughout his life. An accomplished military leader, he participated in his father's conquest of Central Asia, along with his brothers and uncles.