Situated on a mountain, at the base of which we find the village, the castle of Ponzarello is today a ruin. Since the beginning, it was the seat preferred by many Luni bishops. Subsequently it became possession of the Malaspina of Fosdinovo, of the Verrucola and of Gragnola.
In the village below there are some remains of the primitive walls with three door of access.
The castle was built in different periods and the last ones are datable approximately between the XIV and XV century. The first written documentation of the castle goes back to 1185, with the Code Pelavicino, a collection of the XIII century conserved in the "Archivio Capitolare di Sarzana". In 1239, Federico II decided to take possession of it. The castle returned in possession of the bishops of Luni in 1251. With the fight for the power in Lunigana with the Malaspina, at the end of the XIII century, the castle passed under the dominion of the latter. In 1319 it was time of Castruccio Castracani, then Bishops and the Malaspina again.

More information:
The village of Ponzanello
The castles of Fosdinovo