The Monastery of San Lorenzo de Carboeiro is one of the most outstanding architectural works of the late Romanesque, the transition to the Gothic, in Galicia.
Its gestation was founded in the year 939 AD. When the construction was completed, the priest Felix was chosen as the first abbot of the community.
Its moments of greatest splendor were between 11th and 13th centuries. Abbot Fernando, from 1162 to 1192, expanded the church. At this stage the monastery belonged to the 'Cluny' order, and for a long period has a rich estate.
During the 15th century lawsuits, neglect and mismanagement, lead to the community’s ruin, and in 1500 by order of Ferdinand and Isabella, it is relegated to the status of priory, a farm for San Martiño Pinario in Santiago, prolonging its decline, including a prison built for monks in 1794 and until 1836, coinciding with tits confiscation by Mendizabal, and its total abandonment.
The church and some other buildings are still in good condition, after the works of restoration and recovery made during the second half of the twentieth century.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.