The first stone church in Hörsne was built in Romanesque style during the 12th century. The oldest part of present church is the tower dating from the first half of the 13th century. The rest of the Romanesque church was eventually pulled down and replaced with a Gothic main building. Thus the choir and the vestry are from the end of the 13th century, while the nave was built during the early 14th century. When the nave was constructed, the choir was also modestly 'modernised' by the insertion of the presently visible eastern window. The church retains much of its medieval character.
The church has two remarkably sculptured portals. The choir portal display carved foliage and a few figures: two fish and a lion. The main portal is crowned by a sculpture of Saint Michael wielding a club and carrying a shield, sitting astride the wimperg. Underneath, the capitals are profusely sculpted with scenes from the apocalypse. Other capitals are decorated with foliage ornamentation. Both of the portals may have been made by the so-called Master Egypticus, a locally active anonymous master stone sculptor, and his workshop.
Some of the church windows display original stained glass paintings, displaying architectural motifs, foliage and a depiction of Bartholomew the Apostle. The church's altarpiece is a curious mix between Gothic wooden sculptures, evidently stemming from an earlier (14th century) altarpiece, incorporated into a Baroque altar from 1701. The church also has a notable triumphal cross, where the figure of Jesus is 15th century but the cross itself from the 17th. The pews, the pulpit and baptismal font are all from the 17th and 18th centuries.
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.