Huayna Capac , originally called Titu Cusí Huallpa, when he acceded to the Inca throne he took the name of Huayna Capac. Despite having adopted his uncle the auqui Topa Inca as his advisor, his rise to power was difficult, even having to live for a time in hiding to escape the intrigues of the greedy Chuqui Ocllo, his father's concubine, whom he had poisoned to allow his son Capac Huari to be enthroned Inca. Having obtained the support of a certain sector of the nobility for his purposes, Chuqui Ocllo led an insurrection that was finally subdued by General Otorongo Achachi, a highly prestigious and experienced military man, who liquidated the ringleaders, starting with Chuqui Ocllo; Capac Huari was forgiven but Chinchero was banished to die in the same place where his mother poisoned his father. The crisis did not end there, since Titu Cusí Huallpa was still a minor, so it was necessary to appoint him an incap raptin (regent). The nobility appointed Apo Huallpaya, uncle of the young heir to the throne, who soon conspired in favor of his son, in collaboration with the solar clergy. Said plot was discovered by Huaman Achachi thanks to the denunciation of a group of thieves, who after snatching several baskets of coca from some mitayos who were heading to Cuzco, found weapons inside. After the pertinent investigations, the capture and death of those involved were ordered.
Huayna Capac is named Inca
Once recognized as an Inca, Huayna Capac kept the empire pacified, for which he frequently visited his territory and appointed administrative officials in all kinds of activities. He appointed his son Topa Cusí Huallpa (Huáscar) as his successor, allowing him to run. Leaving him in charge of the government of Cuzco, he undertook an expedition to Chinchaysuyo, composed of an army of two hundred thousand men, not including women and yanas . Passing through the kingdom of the Huancas, he ordered the segregation of that kingdom into three districts or sayas autonomous, in order to culminate the old rivalries of the jatun curacas of hanan and urin, an effective measure with which he destructed the powerful huanca kingdom.
He entered the province of Chachapoyas putting down a rebellion, and from there undertook the conquest of Chilcho to Moyobamba. From Tumipampa he sent troops to put the huancavilcas and chonos in order, but due to the torrid climate of the coast it was impossible for him to reestablish direct control, reaching an agreement by which they would pay a tribute in shells, avoiding future incursions of the Cuzco people He almost simultaneously launched another army against carangues, cayambes and pastures, ethnic groups from the extreme north, whom he defeated after a long fight that lasted ten years. The rebels were defeated and massacred in the battle of Cocharangue , which from that date was called Yawarcocha (lake of blood), in memory of the waters dyed red. Later he received news of an incursion of Guarani troops into Collao, ordering his captain Yasca to reconquer the Cuzcotullo garrison. Hundreds of Guarani were taken prisoner and transferred to Vilcanota, where they were known as Chiriguanos. In his time the empire reached its maximum expansion and splendor, reaching the Ancasmayo River (current Carchi River that separates Ecuador from Colombia).
The llacta also gained importance of Quito, located in the north, residence of hundreds of mitmas Incas, appointed to control the subversive lands of Carangue, Cayambe and Pasto, but Cuzco maintained its political hegemony. In one of his incursions to the coast, Huayna Capac caught a strange disease that was ravaging the population of the north of the empire, dying in his palace in Tumipampa. His death created a succession crisis, leading to a civil war between his sons Huáscar and Atahualpa.