The name 'Reyes' originates from the Spanish word for 'kings'. It is derived from the title of the Virgin Mary, 'La Virgen de los Reyes', meaning 'The Virgin of the Kings'. According to legend, the Virgin Mary appeared to King Ferdinand III of Castile, assuring him of victory over the Moors in Seville. The name is often associated with royalty and divine favor, reflecting its historical and religious significance.