Juan Alfonso Pérez de Guzmán
3rd Duke of Medina Sidonia
Years: 1464 - 1507
Don Juan Alfonso Pérez de Guzmán y Afán de Ribera, 3rd Duke of Medina Sidonia (February 1464 – 1507) inherits the title in 1492, aged twenty-eight.
In 1502, as Gibraltar is transferred to the Crown, the Marquisate of Gibraltar disappears.
