It is prefaced by a declaration signed by Juan Vázquez, supposedly at the behest of His Imperial Highness Carlos V, which grants the author the appropriate licenses and printing rights as well as posting monetary fines for anyone who countermanded these orders.
Está precedido de una cédula firmada por Juan Vázquez, supuestamente por mandato de su alteza imperial, Carlos V, a través de la que se otorgan al autor las correspondientes licencias y derechos de impresión así como las penas pecuniarias a quien contraviniere tales resoluciones.