Juan de Mendoza, 3rd Marquis of Montesclaros
Juan de Mendoza y Luna was the posthumous son of the second Marqués de Montesclaros. He was raised by his mother, Isabel Manrique de Padilla.
He served with distinction in the army of the Duke of Alba in the Portuguese campaign, as a captain of lancers. For his service, he was awarded the Order of Caballero de Santiago in 1591. Later he was governor of