The Norman Ruggero’s Castle rises in the higher part of Troina, site of great strategic and military importance, and extends from Piazza Conte Ruggero to Piazza Santa Lucia. The original and huge structure, built on the ancient walls, contained anciently the whole city center. The fortress, dating back to VI century b.C, was previously of Arab domain, then it was gained by the Byzantines who  kept it up to 1061, when the Earl Ruggero chose Troina as point of departure for his military conquest campaigns and ordered to build a new one and more complex castle on the structure of that ancient, extending the walls. The new structure was showing four entry doors (of Baglio, of the Guardian, Canonite and Ram or the Source), high bulwarks and three towers which were checking the submitting valley. Among the few remained ruins, today it is possible to visit the Campanaria Tower Of The Matrix and the Ruggero’s Tower, visibly changed, while the third tower is destroyed.