Its peculiar shape is due to the nave being older than the choir.
The oldest parts of the presently visible church is the nave, dating from the late 12th century.
Oak planks decorated with dragons have however been found on the site, and indicate that there may have existed an earlier, wooden church on the spot.
The nave and tower are Romanesque in style, while the somewhat later and larger choir is Gothic.
The pyramidal tower spire is unusual in that its construction is largely original.