found: Work cat: El duque de Medina Sidonia : mecenazgo y renovación estética, 2015:title page (Duque de Medina Sidonia) table of contents (various contributions to the book concern the VIII, IX and X dukes of Medina Sidonia) page 14 (the book has four foci, one of which is Góngora's relations with the "entorno" of the ducal house of Medina Sidonia)
found: Wikipedia (English), December 9, 2015:Duke of Medina Sidonia page (the dukes of Medina Sidonia are grandees of Spain in Medina Sidonia; the dukedom was awarded by King John II of Castile in 1445)
notfound: LC pattern: Parque, Dukes of