Juana de Velasco Spanish noble, daughter in law of the Conde-duque de Olivares (d. 1687) Parents Bernardino Fernández de Velasco, 6th Duke of Frías Isabel de Guzmán Children Gaspar Felípez de Guzmán Siblings Francisco Baltasar de Velasco, 5th Marquis of Berlanga Íñigo Melchor de Velasco, 7th Duke of Frías Partners Enrique Felipe de Guzmán, 2nd Count-Duke of Olivares