Errindlev Church dates from the second half of the 12th century. It has a Romanesque chancel and nave. The church is said to have been dedicated to St Nicholas because of its associations with seafarers who used it as a landmark. After the Reformation it belonged to the Crown until in 1699 it was transferred to Flemming Holck til Lungholm whose estate was acquired by Christian Detlev Reventlow. As a result, it later came under his estate Christianssæde. In 1784, it was removed from the authority of the estate together with Lungholm and became part of the barony established in 1819. The church gained its independence in 1924.
The church consists of a Romanesque nave and chancel with a Gothic extension and a tower built at the time of the Reformation. Gothic star-shaped vaulting was completed in the nave c. 1275. The Gothic porch on the south side was demolished in 1619 and a new half-timbered porch was built on the north side. Only about half of the Romanesque chancel and nave have remained. Traces of two round-arched windows can be seen in the chancel, one on either side while there is evidence of rounded Romanesque doors in the nave. Building of the tower started in 1530 but was discontinued before it was completed. After numerous difficulties in the supply of bricks, it was finally finished in 1607.
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.