Gråborg is the largest ancient castle in Öland. It was built probably in the 6th century and enlarged through Middle Ages. According old tax reports dating back to the year 1450, Gråborg was owned by Vadstena abbey and functioned as a some kind of trade center. It was used for defence against Danish even in 1677. According to legend Gråborg was strongly associated with king Burislev Sverkersson who had grown up there with his half-sister Sofia of Minsk.

Gråborg Castle consisted of a circular wall, about 4-7 meter tall. There were three entrances and one of them was vaulted in the Middle Ages. Archaeological excavations have revealed lot of findings, which are stored today in Kalmar Museum.

There are medieval ruins of the chapel of St. Knut on the north side of castle.



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Founded: 500 AD
Category: Castles and fortifications in Sweden
Historical period: Migration Period (Sweden)


4.3/5 (based on Google user reviews)

User Reviews

Ludovic Nion (2 years ago)
A nice breath in the Swedish countryside
Leonardo Romanello (2 years ago)
Need steps? Love cattle? Then don’t miss Gråborg. ?
Zommy NL (2 years ago)
Very interesting place with loads of old and ancient buildings, graves and several hiking trails. We visited the wall ( which has cute little goats in them now) and the old ruined chapel. Signs are very clear and available in several languages (See, En, Ger). You can spent the entire day here of you walk all the trails or quickly stop by the chapel and wall as we did. Entry is free
claire gisubizo (gisubizo claire) (3 years ago)
Historical information and its beautiful view makes it different
Pardalis Georgios (3 years ago)
The chapel ruin could get some better care,but combining it with the fortress ruin and the nice hiking paths around makes it a pleasant experience.
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Kastelholma Castle

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.