The stone church of Adelsö was built in the late 1100s. No traces have been found of the first church on the location, but it is assumed it was made of wood. This original structure was however replaced by a stone building, possibly initiated by the king living at the royal estate at Hovgården. If true, the church thus originally served both the local parish and the royal mansion.
The stone structure originally had a nave furnished with a narrow choir which possibly ended in an apse. The sacristy was added in the 14th century, and during the century that followed the tower and then the brick vaults were added. In the 1470s, the choir was widened and united with the nave. The exterior of the tower was created in 1753. and finally, 70 years later, the entrance was relocated from the southern façade to the western end; old windows were enlarged and new windows were added.
There is a baptismal font which dates from the 12th century and a crucifix from the later half of the 14th century. The pulpit dates from 1786 and the gallery from 1832. The votive ship hanging in the church was donated in 1960.
Two Viking Age memorial runestones are built into the walls of the sacristy, one designated in the Rundata catalog as Uppland Runic Inscription 1or U 1 and the other as Uppland Runic Inscription 10 or U 10. Additionally, the so called Hovgården Runestone, U 11, is located just north of the church, near the ruins of the medieval brick palace Alsnö hus.
References:The Beckov castle stands on a steep 50 m tall rock in the village Beckov. The dominance of the rock and impression of invincibility it gaves, challenged our ancestors to make use of these assets. The result is a remarkable harmony between the natural setting and architecture.
The castle first mentioned in 1200 was originally owned by the King and later, at the end of the 13th century it fell in hands of Matúš Èák. Its owners alternated - at the end of the 14th century the family of Stibor of Stiborice bought it.
The next owners, the Bánffys who adapted the Gothic castle to the Renaissance residence, improved its fortifications preventing the Turks from conquering it at the end of the 16th century. When Bánffys died out, the castle was owned by several noble families. It fell in decay after fire in 1729.
The history of the castle is the subject of different legends.