Östra Ryd Church was built around the year 1300 and the nave and vaults were constructed around 1430. The church was rebuilt completely in the 1700s, when the tower was added. The altar screen is made of oak in 1488. The limestone font dates from the mid-1200s and wooden cruficixes from the 1400s. There is also a chapel of Brahe family, added in 1690-1693. They donated lot of valuable inventory to Östra Ryd church, most of them were war trophies from the Thirty Years' War.
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.