 The leader who defended Cusco took up sovereign power and founded a new dynasty.According to the "Commentarios Reales de los Incas" by Garcilaso de la Vega, the Incan fugitive was the old Yawar Waqaq, and the prince that took up the defence of Cusco was his son, Hatun Topa, afterwards called Viracocha Inca.According to Juan de Betanzos (1551), the fugitive was the old Viracocha and not only him but his successor (and the brother of Cusi Yupanqui), Inca Urco, escaped responsibility, the prince Cusi Yapanqui being their saviour.