From 1527 to 1532, brothers Huascar (left) and Atahualpa (right) fought over the Inca Empire.
I cannot let my brother make a deal with the Spanish lets order his death.
Huascar ruled Cuzco, capital of the Inca Empire. Therefore, he commanded loyalty of most people.
We can not let the mighty army of Rumiñahui take our goal of liberating Atahualpa
LETS EXECUTE HIM!!!
Atahualpa had the loyalty of the large Inca professional army and three outstanding generals Chalcuchima, Quisquis, and Rumiñahui.
November 1532, Atahualpa was afraid his brother would make a deal with the spanish order his death and Huascar was butcher at Andamarca, not far from Cajamarca.
Pizarro and his men began hearing rumors the mighty army of Ruminahui were mobilizing and come to liberate Atahualpa. So they panicked and executed Atahualpa on July 26 and accused him of "teachery."
Since the empire had been divided after the death of Atahualpa the spanish allied together and were able to walk into Cuzco and loot whatever had been left behind after Atahualpa's ransom had been paid. The rivalry between Atahualpa and Huáscar survives to this day.