Juan Manuel Pérez de Guzmán, 8th Duke of Medina Sidonia Spanish nobleman and Knight of the Order of the Golden Fleece (1579–1636) Parents Ana Gómez de Silva y de Mendoza Alonso Pérez de Guzmán, 7th Duke of Medina Sidonia Children Gaspar Alfonso Pérez de Guzmán, 9th Duke of Medina Sidonia Alonso Pérez de Guzmán y Gómez de Sandoval Luisa de Guzmán Siblings Leonor Manrique Sotomayor Miguel de Guzmán Alfonso Pérez de Guzmán Miguel Gerónimo Pérez de Guzmán Partners Juana de Sandoval