The current Bäl church was built during the first half of the 13th century and replaced an earlier stone church on the same site, fragments of which still remain in the wall between the choir and nave. Of the presently visible church, the choir is the oldest part, with the nave and tower being built successively. Paintings were added in the 13th century through 15th centuries. For some reason, the tower was never finished and does not reach its originally intended height.
The church has two portals on the western façade, one leading to the choir and a larger main portal, located on the south side of the nave. The smaller is the older and still Romanesque in style, while the main portal is Gothic, and more profusely decorated. Additionally, there is an entrance on the north façade. The window openings are all original, and have not been enlarged during later centuries.
Inside, the church is decorated by frescos, uncovered in the early 21st century. They depict the Passion of Christ and scenes from the Bible. The church has some medieval items: a triumphal cross (late 13th century), a baptismal font (13th century), and a wooden sculpture depicting Mary. The altarpiece is Baroque, executed in 1664, and the pulpit is from 1744.
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.