The Funbo Church is a medieval stone church, built in the late 12th century. It consists of a rectangular nave, a narrow choir and an apse. The sacristy and the porch were added in the 15th century. The porch was used as the main entrance until 1745, when the current entrance in the western wall was built. The bell tower was erected in 1675.
The church interior includes some notable items, such as a 13th century baptismal font and a 16th century polyptych, manufactured in northern Germany. The altar was inaugurated on 5 December 1301.
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.