Doña Francisca Perez de Gúzman Silva - 1748 (d. 1748) Parents Doña Luisa Maria de Silva Mendoza y Haro Manuel Pérez de Guzmán, 12th Duke of Medina Sidonia Children Doña Maria Faustina Manuela Téllez-Girón y Perez de Guzman Pedro Téllez-Girón, 8th Duke of Osuna Siblings Juana Perez de Gúzman Silva Domingo José Claros Pérez de Guzmán, 13th Duke of Medina Sidonia