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A South-Karelian municipality in Finland.
Before 1743 --- belonged to Sweden, being an administrative unit of
- the Province of Karelia (Karjalan lääni in Finnish, Karelens län in Swedish), 1634–1641
- the Province of Viipuri (Viipurin lääni in Finnish, Viborgs län in Swedish), 1641–1650
- the Province of Viipuri and Savonlinna (Viipurin ja Savonlinnan lääni in Finnish, Viborgs och Nyslotts län in Swedish), 1650–1721, and
- the Province of Kymmenegård and Nyslott (Savonlinnan ja Kymenkartanon lääni in Finnish, Kymmenegårds och Nyslotts län in Swedish), 1721–1743.
Between 1743 and 1812 --- was part of Old Finland (Vanha Suomi in Finnish, Gamla Finland in Swedish, Старая Финляндия in Russian), belonging to Russia, being an administrative unit of
- the Governorate of Vyborg (Viipurin kuvernementti in Finnish, Выборгская губерния in Russian), 1743–1783/1784
- the Viceroyalty of Vyborg (Viipurin käskynhaltijakunta in Finnish, Выборгское наместничество in Russian), 1783/1784–1796
- the Governorate of Vyborg (Viipurin kuvernementti in Finnish, Выборгская губерния in Russian), 1797–1802/1803, and
- the Governorate of Finland (Suomen kuvernementti in Finnish), 1802/1803–1812.
Between 1812 and 1917 --- was part of the autonomous Grand Duchy of Finland (Suomen suuriruhtinaanmaa or Suomen suuriruhtinaskunta in Finnish, Storfurstendömet Finland in Swedish, Великое княжество Финляндское in Russian), belonging to Russia, being an administrative unit of the Province of Viipuri (Viipurin lääni in Finnish, Viborgs län in Swedish).
Since 1917 --- is part of independent Finland, being an administrative unit of
- the Province of Viipuri (Viipurin lääni in Finnish, Viborgs län in Swedish), 1917–1945
- the Province of Kymi (Kymen lääni in Finnish, Kymmene län in Swedish), 1945–1997, and
- the Province of Southern Finland (Etelä-Suomen lääni in Finnish, Södra Finlands län in Swedish), 1997–2009.