The castle of Brina is located on the left slope of a hill in the lower Val di Magra, along the ridge between Falcinello and Ponzano Superiore, within the district of Sarzana and on the border with Santo Stefano di Magra. The original part of the castle could date back to the 11th century. It was first mentioned in a sales contract on May 25, 1055. The houses, the lands and the castle’s walls were mentioned in a sales document on June 14, 1078, in which Pellegrino de Bruciore sold all his belongings and the lands outside the walls of the defensive fortification of Brina to the bishop of Luni.
During the 14th century, the castle was torn down, not by war, but as a result of a systematic destruction. This is confirmed by the ruins of the buildings, which show signs of having been destroyed using picks. The tower was torn down through the mining technique, that is to say by substituting a line of rocks at the base of the building with wood and setting it on fire.
The castle is in ruins but it has been made safe and strengthened after a recent restoration.
References:The Church of St Donatus name refers to Donatus of Zadar, who began construction on this church in the 9th century and ended it on the northeastern part of the Roman forum. It is the largest Pre-Romanesque building in Croatia.
The beginning of the building of the church was placed to the second half of the 8th century, and it is supposed to have been completed in the 9th century. The Zadar bishop and diplomat Donat (8th and 9th centuries) is credited with the building of the church. He led the representations of the Dalmatian cities to Constantinople and Charles the Great, which is why this church bears slight resemblance to Charlemagne's court chapels, especially the one in Aachen, and also to the Basilica of San Vitale in Ravenna. It belongs to the Pre-Romanesque architectural period.
The circular church, formerly domed, is 27 m high and is characterised by simplicity and technical primitivism.