St. Peter's Church in Garz is an impressive church built originally in the 14th century, but it took until the 16th century to finish. One of the elements on the outside of the brick building to stand out is the square west tower. A richly decorated font from the 13th century is the oldest piece of decoration. Most of the other furnishings date back to the 18th century, such as the suspended baptismal angel or the pulpit. The altar screen was created by Elias Kessler in 1724.
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.