Who was the emperor of Incas?

The last emperor of the Inca was Atahualpa. His father Huayna Capac had died of smallpox in 1526 or 1527. The heir to the throne, Ninan Cuyuchi, also died. This left two of Huayna's other sons fighting for the throne. Atahualpa ruled from Quito, and his half-brother, Huascar, ruled the south from Cusco. At the Battle of Quipaipan, Atahualpa defeated Huascar. Because the Inca were so busy fighting each other, they were less prepared to fight Pizarro.