Built in the 12th century, Santa María Magdalena is a small Romanesque church of the Templars. At their suppression, it was given to the Venerable Order of Saint John. The exterior features a deeply recessed south entrance, with circular arches and shafts, as well as ornate Romnnesque work. The rose window, formed with small columns, is similar to the Temple Church in London.
The interior includes canopied tombs dating to the 13th century, supported by spiral and fluted shafts. Against the north wall, there is a tomb under a canopy supported by three shafts. The sepulchre itself is plain, carved with a cross; the effigy of its occupant is carved, as if lying on a bed, out of a bold block of stone, and inserted in the wall; above this is the soul (in the shape of a head with wings) supported by angels.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.