Juan Pacheco

Juan Pacheco, 1st Duke of Escalona (1419 – 1 October 1474), better known as Juan Pacheco, Marquess of Villena, was a Castilian noble of Portuguese descent who rose to power in the last years of the reign of Juan II of Castile and came to dominate the government of Castile during the reign of Juan II’s son and successor Henry IV of Castile. Created The 1st Duke of Escalona in 1472, his other titles included, among others, Marquess of Villena and Master of the Order of Santiago. Provided by Wikipedia