Hyuga Clan
An old and distinguished clan, the Hyuga clan is separated into two sections - the 'Main House' and the 'Branch House'. There is a lot of rivalry between the two houses, as we see in the battle between Neji and Hinata (Hinata is of the Main House, Neji of the Branch House). Hyuga members often develop the Byakugan technique, much like members of the Uchiha clan and the Sharingan.