Duke of Benavente is a hereditary title in the Peerage of Spain, accompanied by the dignity of Grandee and granted in 1473 by Henry IV to Rodrigo Alonso Pimentel, 4th Count of Benavente.
Since the Countship of Benavente was not revoked after the concession of the dukedom, the holders of the distinction are technically Count-Dukes of Benavente, similar to the Count-Dukes of Olivares.
Wikipedia https://en.wikipedia.org/wiki/Duke_of_Benavente
Address 2D Paseo de la Mota, 49600, Spain
Coordinates 41°59'58.676" N -5°40'53.649" E