After the conquest of their previous capital, the final holders of this title ruled from (*)  
Legendarily, stones rose up to fight alongside a holder of this title against an invasion by the Chanka; that holder incorporated the Chimú people into his realm. A holder of this title provoked an attack by throwing a holy book offered by the friar Vicente de Valverde to the ground. After the conquest of their previous capital, the final holders of this title ruled from (*)  Vilcabamba. A holder of this title ended a civil war by executing his brother Huáscar but was himself executed despite offering a massive gold-filled "ransom room" to his captors. The last autonomous holder of this title, Atahualpa, was killed by the forces of Francisco Pizarro. For 10 points, identify this title whose holders ruled from Cuzco over a vast Peruvian empire.
Legendarily, stones rose up to fight alongside a holder of this title against an invasion by the Chanka; that holder incorporated the Chimú people into his realm.
emperor  of the  Inca  [or  Sapa Inca ; or obvious equivalents for "emperor"]