The Castle of Medinaceli is a medieval fortress in Medinaceli. It was built in the 9th century and rebuilt in the 15th century. Almanzor died here in 1002.
Wikipedia https://en.wikipedia.org/wiki/Castle_of_Medinaceli
Address Calle de la Hospital, Medinaceli 42240, Spain
Coordinates 41°10'11.175" N -2°26'12.96" E