Saint Nicholas Church, is located in the harbour town of Bogense on the Danish island of Funen. It was built in 1406 on the remains of a 12th-century Romanesque church. In the mid-15th century, various additions were made including the tower which unusually is at the east end of the church. The tall spire served as a landmark for shipping. Comprehensive restoration work was completed in 2010. Artefacts include a 16th-century altar (1588), a 13th-century baptismal font, and a carved pulpit from 1604.
First record of Kastelholma (or Kastelholm) castle is from the year 1388 in the contract of Queen Margaret I of Denmark, where a large portion of the inheritance of Bo Jonsson Grip was given to the queen. The heyday of the castle was in the 15th and 16th centuries when it was administrated by Danish and Swedish kings and stewards of the realms. Kastelhoma was expanded and enhanced several times.
In the end of 16th century castle was owned by the previous queen Catherine Jagellon (Stenbock), an enemy of the King of Sweden Eric XIV. King Eric conquered Kastelholma in 1599 and all defending officers were taken to Turku and executed. The castle was damaged under the siege and it took 30 years to renovate it.
In 1634 Åland was joined with the County of Åbo and Björneborg and Kastelholma lost its administrative status.