Værne Kloster

Værne Kloster is a manor and former abbey in the municipality of Rygge in Østfold, Norway.

Originally a Kongsgård estate, King Sverre of Norway established a Knights Hospitaller abbey at Værne around 1200.

The facility also served as hospital for the king's army until 1308, when King Haakon V established a hospital for this purpose at St Mary's Church, Oslo.

The buildings were burned down in 1570 in connection with the Northern Seven Years' War.

The first antiquarian study of the ruins was made in 1812 by Lorentz Diderich Kluwer (1750- 1820).