 During the Spanish Conquest in the sixteenth Century, the Aztecs referred to the Spanish explorer and conquistador Pedro de Alvarado as Tonatiuh.Alvarado was said to be violent and aggressive and had a red beard, reminding them of their sun-god warrior (often painted red) Tonatiuh.In a translation of his writings, the Spanish conquistador Bernal Díaz del Castillo speaks of the Aztec's reference to Alvarado as "the Sun".