The tower of Bunge Church was originally built for defensive purposes as part of the older church. The present nave and choir were built around 1300. The interior is richly decorated with murals, dating from from the end of 14th century. These magnificent paintings were made probably by Baltic master, who arrived to Gotland with Teutonic Order.
The baptismal font and limestone almsbox (with rune inscription: ”Lafrans made this stone”) date from the 13th century. The altarpiece was made in 1689 and pulpit in 1702. The high churchyard wall (with loopholes) was part of the original defence wall.
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.