The Monastery of San Paio de Abeleda is a medieval monastery built in the 12th century located 2 km from Abeleda village. Today found in a state of ruins, it was originally one of the most influential monastic centres in the province and was converted into an abbey surviving until the 19th century Ecclesiastical Confiscations of Mendizábal. It was acquired by the House of Alba in 1872.
The church was built in the Romanesque style in the 12th century (with further alterations later). In plan it takes the form of a Latin cross. It consists of a single nave with 3 wings separated by pointed arches with archivolts decorated with chequered imposts and the capitals are adorned with flowers and chimeras. Traces of the original paint on the capitals, which had been maintained for several centuries, still remain visible today. The church was greatly reformed during the 16th century however a door from the 13th or 14th century was preserved. The main altar dates to the 17th century.
The facade of the cloister is in the Gothic style, and features a quatrefoil Gothic arch.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.