The term CONQUISTADOR QUEST refers to the Spanish conquistadors who explored and conquered parts of the Americas in the 16th century. The crossword solutions ORO (3 letters), CORTES (6 letters), INCA (4 letters) and PERU (4 letters) refer to some of the key figures and locations associated with this period. Hernán Cortes was a Spanish conquistador who led the expedition that overthrew the Aztec Empire in 1521, while Francisco Pizarro led the expedition that overthrew the INCA Empire in 1533. Both Cortes and Pizarro were searching for gold, or ORO in Spanish, and their expeditions took them to Peru, where they encountered the INCA people.