The Basilica of Saint Mary of Coro is a baroque Roman Catholic parish church and minor basilica completed in 1774.
The main nave consists of a large space of 48 by 33 metres divided into three naves, which in turn can be divided into 4 zones having as axis the pillars of the nave. Six pillars and the walls with pillars act as a buttress supporting the vaults. The octagonal pillars reach, up to their capitals, a height of 15 metres. The central dome is 27 metres high. At the end of the nave, on the right side, different rooms are used by the parish and other services: daily chapel, sacristy and storage rooms.
The main entrance is located between the two towers and looks as an altarpiece with its tortured figure of Saint Sebastian and the papal symbols that prove the status of minor basilica. The shield of the city crowns the building.
References: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.