Several brothers of Pedro de Alvarado joined Hernan Cortes in the port of Trinidad, where he began his journey to the Conquest of Mexico, including Gonzalo and Jorge Gomez, and Juan the Old Bastard.
Pedro de Alvarado was the first Captain of Hernán Cortes during the conquest of Mexico.
He began his campaign with the battle against the Talxcaltecas led by Xicoténcatl when the conquistadors defeated agreed to a partnership with them, to fight against the Aztecs.
As a peace sign Tlaxcaltecas gave their women to the main captains, one of them was the daughter of Xicotencatl the Elder, who was baptized as Doña Luisa, who was intended to Hernan Cortes, who gave it to Pedro de Alvarado. Still a bachelor, Pedro de Alvarado had a son with Dona Luisa, who was baptized with his own name and a daughter who was baptized with the name of Doña Leonor.