Vicaquirau Inca and Roca's nephew Apu Mayta were great warriors, who helped subjugate Muyna, Pinahua and Caytomarca.

However, after Qhapaq Yupankiʻs death, the hanan moiety rebelled against the hurin, killed Quispe Yupanki, and gave the throne to Inca Roca, son of another of Qhapaq Yupankiʻs wives, Cusi Chimbo.

Inca Roca moved his palace into the hurin section of Cuzco.

In legend, he is said to have conquered the Chancas[3] (among other peoples), as well as established the yachaywasi, schools for teaching nobles.

More soberly, he seems to have improved the irrigation works of Cuzco and neighboring areas,[1][4] but the Chancas continued to trouble his successors.