EnnaAidone.
This little town possibly began to develop in the 12th c. around the Castle and the Priory of Santa Maria la Cava. It flourished under the Normans, the Swabians and the Aragonese.

The Chiesa di Santa Maria la Cava, at the centre of the town, was built, according to some sources, by Countess Adelaide, in 1134, and to others, in the 14th c. In the course of time it was frequently altered, most noticeably in the 18th c. Traces from the 14th c. are still visible in the apses. Among the other churches there is San Domenico, 15th c. in origin but with a baroque façade. The Gresti Castle, located on a hill N of Aidone, used to play a role of great strategic importance; it was probably founded by the Normans, but it has been frequently modified and in some parts it is badly ruined; stark and massive in appearance, it is dorninated by the high square keep. In feudal times it passed from the Chiaromontes to the Rossis and the Gioenis. The archaeological items found at Serra Orlando, about 6 km from Aidone, are thought to come from the ancient city of Morgantina (q. v.). Most of the finds are displayed in the Aidone Regional Archaeological Museum, situated in a building which used to be a Capuchin convent.