Atoc was a general and brother of the Inca emperor Huáscar

Huáscar

Huáscar Inca was Sapa Inca of the Inca empire from 1527 to 1532 AD, succeeding his father Huayna Capac and brother Ninan Cuyochi, both of whom died of smallpox while campaigning near Quito.After the conquest, the Spanish put forth the idea that Huayna Capac may have...

. After the death of Huáscar's father, Huayna Capac

Huayna Capac

Huayna Capac was the eleventh Sapa Inca of the Inca Empire and sixth of the Hanan dynasty. He was the successor to Tupac Inca Yupanqui.-Name:In Quechua, his name is spelled Wayna Qhapaq, and in Southern Quechua, it is Vaina Ghapakh...

, Atoc was sent north (probably in 1529) to quell the separatists under Huáscars half-brother Atahualpa

Atahualpa

Atahualpa, Atahuallpa, Atabalipa, or Atawallpa , was the last Sapa Inca or sovereign emperor of the Tahuantinsuyu, or the Inca Empire, prior to the Spanish conquest of Peru...

. Atahualpa was defeated in the battle of Chillopampa Plains and captured, but managed to escape and set up a new army. Another battle was fought at Chimborazo

Battle of Chimborazo

The Battle of Chimborazo was among the first confrontations in the War of the two brothers, a struggle between Huáscar and Atahualpa for power over the Inca Empire. Atahualpa won, having the more capable generals; he drove Huáscar back onto the defensive....

, and this time Atahualpa emerged as victor. His general Chalkuchimac reportedly had Atoc mutilated and killed, either by having his head being put to use as a goldened chicha

Chicha

For the musical genre, see Peruvian cumbiaChicha is a term used in some regions of Latin America for several varieties of fermented and non-fermented beverages, rather often to those derived from maize and similar non-alcoholic beverages...

 cup or his eyes being torn out and left alone on the field of defeat. His and his co-general Hango's hides were allegedly carved off and used as drums. Shortly after, Atahualpa recaptured Tumebamba

Tumebamba

Tumebamba or Tomebamba, was a former city-state in the Inca federation, held by the ethnic Cañaris people; roughly translating to "entrance of the puma"...

 and Cajamarca

Cajamarca

Cajamarca may refer to:Colombia*Cajamarca, Tolima a town and municipality in Tolima DepartmentPeru* Cajamarca, city in Peru.* Cajamarca District, district in the Cajamarca province.* Cajamarca Province, province in the Cajamarca region....

 and, in April of the following year, Atahualpa's generals seized Cuzco.