I will be passing from Cuenca to Granda and back again between 17 April and 22 April. I would like to visit some nice castle ruins. Belmonte is on the way and would appreciate any links or info on others that are worth a stop.

There are actually three in the vicinity of Belmonte, including Alarcon, my personal favorite. Here's a link for castles in Cuenca: http://spanishcastles.castillosnet.org/cuenca1.shtml

Thanks for the link! Very helpful. Excellent photos.