The city is spread between the four valleys of the rivers Lenne, Else, Oester and Grüne.
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Rolf Steininger (born 1942 in Plettenberg) is a German historian and university professor for contemporary history
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Ruth Eweler (1913-1947) was a German actress born in Plettenberg
It stretches between Herscheid and Plettenberg (outside the area) in the north, Attendorn and Finnentrop (outside the area) in the east, the Biggesee in the south and Kierspe and Meinerzhagen in the west, where the Ebbe Hills are surrounded by the Ebbe Hills Nature Park.
They is located north and northeast of the middle reaches of the Lenne between Hemer and Iserlohn to the northwest, Sundern to the north, Eslohe to the east, Finnentrop to the south, Plettenberg and Werdohl to the southwest and Altena to the west.
Gisela Gräfin von Plettenberg-Lenhausen, daughter of Walther Graf von Plettenberg-Lenhausen
In 1500 Plettenberg made an alliance with Grand Duke of Lithuania, Alexander Jagiellon (the Treaty of Wenden), who was in war with Russia since 1499.