Question: Which Spanish conquistador killed Atahualpa and was subsequently assassinated and succeeded as governor by Cristóbal Vaca de Castro?
Sentence (from "Battle of Chupas"): After the assassination of Francisco Pizarro, in retaliation for his father's execution in 1538, Diego de Almagro II, "El Mozo", continued to press claims as the rightful ruler of Peru and as leader of his father's supporters.
Relevant evidence: Yes