Roslags-Bro church was built of granite in the 13th century. It was built by an important sea-route, since disappeared as a consequence of the post-glacial rebound. Immured in the church is a runestone from the 11th century.
The tower was added in the 1400s and restored in 1700s. The church is famous due its fine sculptures. The wooden sculpture of Eric IX of Sweden, made in France in 1200s, has been model to Stockholm city coat of arms. The crucifix made in Gotland and font date also from the 13th century. The altar and other saint sculptures date from the 15th century.
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.