Osterland

Österland (Eastland) or Österlanden (Easternlands), one of the four traditional lands of Sweden, was a medieval term used for the southern part of Finland. It gradually fell out of use by the 15th century. Finland remained a part of Swedish Realm until after the Finnish war of 1808–09, when it was ceded to Russia and came to constitute the autonomous Russian Grand Duchy of Finland.

The following seven provinces formed Österland:

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