San Lorenzo is a Baroque-style Roman Catholic church building in Melfi. The octagonal church was initially built in the 1000s by the Byzantine rulers of the city, and was soon occupied by canons belonging to the nearby Abbey of Monticchio. In 1500, it became a parish church.
The church has suffered damage over the centuries from the earthquakes. The present portal and long stairs appears to date to the 17th century. The adjacent bell-tower, rebuilt in the 14th century by the family of Niccolo Acciaiuoli, has since collapsed, and only the base remains. In 2015, the church underwent refurbishment including demolishing a parish house built to the left of the entrance portal.
Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.