Fridlevstad Church, built in the late 1100s or early 1200s, is one of the oldest in Blekinge region. The stone church could also had defensive purposes. It was burned and looted during the Northern Seven Years' War (1563-1570) by Swedish troops and only walls survived. After the war the church was completely rebuilt and again in the 18th century.
The altarpiece dates from the 17th century and contains a painting depicting the Last Supper. The font is carved from oak and is late 18th century work. The pulpit is thought to be made by the same master.References:
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.