Medieval Walls of Belmonte Monument · Belmonte, La Mancha Conquense, Cuenca Image of Belmonte, not of the place itself. The medieval walls of Belmonte are the fortifications that don Juan Manuel, nephew of Alfonso X of Castilla y León, began to raise in the town from 1323, when he also built the former alcázar. The wall runs from the castle and encloses the old town of Belmonte, which can still be seen from the fortress's north tower. Photo: Cruccone (CC BY 3.0) What to see and do in Belmonte