Caldey Priory is on Caldey Island off the coast of Pembrokeshire, Wales, some 300 metres south of the modern Caldey Abbey. Sir Robert fitz Martin was granted the island in 1113 and his mother Geva founded the priory as a daughter house of the Tironensian St. Dogmaels Abbey in the 12th century. It was probably built on a preexisting Celtic Christian site, and lasted to the Dissolution of the Monasteries in 1539, although the number of monks resident there ranged from one in the late 12th century, four in 1402 and six in 1504. The buildings were significantly upgraded in the 16th century after the priory was secularized, but there is no evidence that they were used by either of the owning families of the time.
Several centuries later they were used as a farm house, centered on the priory's church. Around 1800 they became the farm buildings for a new house built for Thomas Kynaston, owner of the island from 1798. Restoration of the buildings may have begun as early as the mid-1890s, but the Rev. W. D. Bushell began the restoration after he bought the priory in 1897. He sold the property in 1906 to the Anglican Benedictine community that built the current abbey, but rented the house and the priory until he died in 1917. The house was subsequently demolished in the 1970s.
The priory buildings are built from rubble stone, with slate roofs, and are grouped around a small courtyard. Over the centuries they have been altered many times and have a very complex history. On the north side was a domestic range that has not survived. The gatehouse is on the western side and there is a two-storey dormitory with a tower on the eastern. The church stands on the south side, and consists of nave, chancel and west tower with a spire.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.