Who were Atahuallpa and Huascar in the Inca civil war?

In the history of Peru, Atahuallpa and Huascar were half-brothers and rival claimants to the Inca throne following the death of their father, the emperor Huayna Capac, around 1525.12

The conflict arose because Huayna Capac died without clearly naming a successor. Huascar, based in the capital of Cuzco, was declared emperor, while Atahuallpa remained in the north at Quito with a significant portion of the imperial army. Tensions escalated into a brutal civil war after Huascar attempted to assert his authority and Atahuallpa responded with military force.1

Atahuallpa’s generals, Quisquis and Challcuchima, eventually led his forces to a series of decisive victories. In April 1532, they captured Huascar near Cuzco. While Atahuallpa was held prisoner by the Spanish following the Battle of Cajamarca, he ordered the execution of his brother to eliminate his rival for power. This internal strife significantly weakened the empire, facilitating the Spanish conquest of the region.13