Vårfruberga Abbey (Swedish: Vårfruberga kloster), previously Fogdö Abbey (Fogdö kloster) was a Cistercian monastery of nuns from the 12th century until 1527, situated 1 mile north-west of Strängnäs on the Fogdö peninsula in Lake Mälaren, formerly a parish, in Södermanland, Sweden.
In the 12th century a house of Benedictine nuns was established here, but its exact location is obscure. Excavations in 1991–92 revealed that a medieval fortification had been built on an elevation near the water, and it is possible that the nuns were displaced from their original place of settlement on this strategic site to make room for the fort. This would explain why they moved to what is now Fogdö church, where the monastery was located from 1233. The church was used both as a parish church and as a monastic one, as is testified by an inset opening in the south wall - a so-called "nun's window" ("nunneporten"). The quire was also widened so as better to accommodate the nuns' choral liturgy. Judging from the surviving walls, the services of a builder trained in the Cistercian style were obtained for the project.
After 50 years the nuns moved again to the present Kungsberg (3 km east of Fogdö), where they were able to have built a full monastic complex in accordance with the Cistercian principles of monastery construction and layout. The new buildings were put into operation in 1289. At the same time the name of the community was changed to Vårfruberga ("Mountain of Our Lady"), and was formally accepted into the Cistercian order, as a daughter house of Julita Abbey.
The church was built in the shape of a Latin cross, with three aisles and a short transept. The nave was divided by a wall to separate the nuns from the lay congregation. The church was roofed with tiles, and the external walls may also have been tile-clad.
During the Reformation of 1527, king Gustav Vasa dissolved the abbey and appropriated its property and estates to the crown in accordance with the Reduction of Gustav I of Sweden. He had the monastery buildings demolished to use as a source of stone for the construction of Gripsholm Castle. Parts of the walls survive.
The abbesses are only partially known.
- Margareta (1233-1254)
- In(grid?) (1278)
- Kunigunda (1299-1323)
- Ingrid Birgersdotter (1343-1351)
- Gertrud Jonsdotter (1355-1358)
- Regimod (Andersdotter?) (1348-1400)
- Martha (1405)
- Mechtild (1408-1415)
- Cecilia Jönsdotter (1421-1447)
- Margareta Beyentsdotter (1457)
- Cecilia Jönsdotter (1463)
- Lucia (1466-1474)
- Berette Eriksdotter (1494)
- Margareta Laurecnidotter (1508)
- Martha Henriksdotter (1520- )
- this document is now well known for containing the first known written reference to Stockholm by that name
- Uppgifter från Riksantikvarieämbetets byggnadsregister (in Swedish)
- Vårfruberga klosterruin (in Swedish)
- Kungsbergs kungsgård (in Swedish)
- Fogdö kyrka[permanent dead link] (in Swedish)
- Fogdö kyrka (in Swedish)