Answer:
Crusaders: A group of Christian warriors who fought in a series of religious wars in the Middle East in the medieval period.
Montezuma: A ruler of the Aztecs, an indigenous people of Mexico, during the 16th century when Spanish conquistadors arrived in the region.
Ferdinand: Several European monarchs have had this name, but the most likely person referred to here is King Ferdinand II of Aragon, who ruled from 1479 to 1516 and was married to Queen Isabella I of Castile. Together they sponsored Christopher Columbus's voyages to the Americas.
Cortes: Hernan Cortes was a Spanish conquistador who famously led an expedition that conquered the Aztec Empire in Mexico in the early 16th century.
Balboa: Vasco Nunez de Balboa was a Spanish explorer who is best known for being the first European to see the Pacific Ocean from the Americas in 1513.
Genoa: A city in Italy that was the birthplace of Christopher Columbus, who is credited with discovering the New World in 1492.
Pizarro: Francisco Pizarro was a Spanish conquistador who led an expedition that conquered the Inca Empire in Peru in the 16th century.
Magellan: Ferdinand Magellan was a Portuguese explorer who led the first expedition to circumnavigate the globe in the early 16th century.
Vespucci: Amerigo Vespucci was an Italian explorer who sailed to the Americas in the late 15th and early 16th centuries, and who is sometimes credited with being the first European to recognize that the land he encountered was not part of Asia but was in fact a new continent.