It was expanded in Gothic style circa 1275, and the remains of this extension are the oldest surviving parts of the church (a single mural-decorated vault).
[2] During the 14th and 15th centuries the church was successively rebuilt, until it acquired the look it more or less still displays today.
The church was damaged in a storm in 1648 and received a new transept shortly afterwards.
It contains some fine furnishings including a Baroque high altar, a large side-altar from the 15th century made in northern Germany, two medieval wooden sculptures of Mary and St. John, fragments of murals and an iron chandelier from the 14th century.
There are also two large medieval crucifixes on one of which the sculpture of Jesus is adorned with real hair.