Indra Ootsutsuki (Earth-2356)

Indra Ootsutsuki‎ was the first born son of Hagoromo Ootsutsuki. He was initially thought to be the most suitable successor of his father's teachings of the Living Force, however, it was his younger brother Asura that ended up inheriting this mantle — a decision that would have Indra seek the dark side of the Force  and lead the two brothers to fight against each other. Indra is also credited with being the creator of the Sith Order, and the progenitor of the Uchiha Clan.

Source

 * https://naruto.fandom.com/wiki/Indra_%C5%8Ctsutsuki.