Juan de Betanzos

Juan Diez de Betanzos wrote one of the most important sources on the conquest of the Incan civilization, Narrative of the Incas. He based this account of the Incas on the testimony of his wife, who had been previously married to Incan King Atahualpa as well as conducting interviews of Incans who had taken part in the Battle of Cajamarca or been in Atahualpa's camp.

The "Narrative of the Incas" stands out as one of the few accounts that offers a perspective from the indigenous people of the Inca Empire. Given the scarcity of written records originating from the Incas themselves, this document is particularly valuable for its insights into Incan society prior to Spanish conquest. It details the early phases of expansion, the establishment of the kingdom of Cuzco under the leadership of Yupanqui, and the expansive imperial strategies implemented by Huayna Capac. It also provides an insight into the civil war between Huáscar and Atahualpa that ravaged the Incan civilization immediately prior to the arrival of Francisco Pizarro. However, coming from Atahualpa's wife's point of view, the source is biased against Huáscar.