Manco Cápac
Manco Cápac's tribe, or ayllu, only occupied a small fraction of the Cusco valley, the rest of it being inhabited by larger and more powerful tribes, who often would threaten the city. Located at north of the city there was a confederated lordship of Ayarmacas and Pinaguas. All these tribes regarded Manco Cápac and his ayllu as invaders, and would often attack them. Manco Cápac, and later his son and successor Sinchi Roca would often have to defend the city against the other tribes.