Tresana, a village perched on the valley of the Osca stream, a tributary of the Magra, houses an imposing castle that dominates the valley. In 1164 the Malaspina family obtained from Federico Barbarossa the concession to build a "turris sana" (solid tower), from which the name Tresana derives. The castle, an ancient defensive bulwark, controlled the road that connected the valley of Magra to the Ligurian hinterland. In addition to the castle, Tresana boasts the ancient Church of San Giorgio, existing since 1470, with baroque forms of rare beauty, which enrich the historical heritage of the village of Lunigiana.
