 According to the victors, the Incan was the fugitive elder Yawar Waqaq and the prince who assumed the defense of Cuzco was his son Topa Hatun, named after Viracocha Inca.This is the most accepted version, which coincides with the chronicle of Miguel Cabello de Balboa (1583) and the most refined chronologies.Other chroniclers, among them Bernabé Cobo (1653), mention a second attack by the Chankas shortly after, also headed by Anccu Huayco against Pachacútec.