Alonso Pérez de Guzmán y Sotomayor

Alonso Pérez de Guzmán y de Zúñiga-Sotomayor, 7th Duke of Medina Sidonia (10 September 1550 – 26 July 1615), was a Spanish aristocrat who was most noted for his role as commander of the Spanish Armada that was to attack the south of England in 1588.