Dargun Abbey was originally a Cistercian monastery, converted after its dissolution into a palace. The monastery was founded here in 1172 on the site of a former heathen temple after the conquest of the region by Christian forces in 1164. The founding community came from Esrum Abbey in Denmark. The monastery was destroyed in 1198, and the monks left, later to found another monastery at Eldena. Dargun was re-established in 1208 by monks from Doberan Abbey, which is therefore counted as its mother house.
It was secularised in 1552 and taken over as a residence by Duke Ulrich I of Mecklenburg-Güstrow in 1556, who converted it into a Renaissance palace, which, after the extinction of the line of Mecklenburg-Güstrow, passed to the Dukes of Mecklenburg-Schwerin.
The monastery was brick-built. The principal building complex was reconstructed in the 14th century. The Gothic abbey church was built between 1225 and 1270, with further work to the choir in 1464. The church is now ruined but parts of the choir, nave and transept remain.
In 1637 the palace burnt down and was rebuilt until 1654. Until the mid-18th century it served as the home of the widows of the princely house of Mecklenburg-Güstrow. It was re-converted in the 19th century under Georg Adolf Demmler, and burnt down at the end of World War II. Little was done to secure the ruins until 1991. From 1994 some reconstruction and repair has taken place. The buildings presently accommodate an information bureau and the town library.References:
Frösöstenen is the northern-most raised runestone in the world and Jämtland's only runestone. It originally stood at the tip of ferry terminal on the sound between the island of Frösön and Östersund. The stone dates to between 1030 and 1050. It has now been relocated to the lawn in front of the local county seat due to the construction of a new bridge, between 1969 and 1971, on the original site.
Frösö runestone inscription means: Austmaðr, Guðfastr's son, had this stone raised and this bridge built and Christianized Jämtland. Ásbjörn built the bridge. Trjónn and Steinn carved these runes.