The term CONQUEROR OF can be filled in with two six-letter solutions: CORTEZ and CORTES. Both refer to the Spanish conquistador Hernán Cortes, who was instrumental in the Spanish conquest of the Aztec Empire in the early 16th century. Cortes led a large expeditionary force from Cuba to the Yucatán Peninsula, where he encountered the Aztecs and eventually conquered their capital city of Tenochtitlan. He is remembered as one of the most successful military commanders in history.