In 1532 which Spanish explorer invaded Peru and eventually conquered the Inca Empire?

In 1532, Spanish explorer Francisco Pizarro invaded Peru and conquered the Inca Empire. Pizarro took advantage of the internal strife within the Inca civilization, particularly the civil war between Atahualpa and Huáscar. After capturing Atahualpa, Pizarro demanded a ransom and eventually executed him, leading to the Spanish takeover of Inca territories. This conquest marked a significant expansion of Spanish influence in South America.