Tenth Sapa Inca; son of Pachacuti and the coya Mama Anahuarque. Named in the prose of Pachacuti and Viracocha Inca as the continuator of imperial expansion. Scion-class (registry math: scion father Pachacuti plus mortal mother). His northern and southern campaigns more than doubled the empire founded by his father, bringing Tahuantinsuyu to its near-maximal extent.