Highlight • Castle
Plön Castle in the distance
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Petra & Michael
March 22, 2026
Hiking
Plön Castle, built 1633–1636 as a residence for Duke Joachim Ernst, is the largest castle in Schleswig-Holstein and an important Renaissance building. It served as a ducal seat, Danish summer residence, Prussian cadet institute and boarding school before being extensively renovated. Today, the highly visible, white castle is home to the Fielmann Academy.
Here are the most important epochs of the castle's history:
Origin:
The castle stands on the foundations of an older castle from the 12th century.
Construction period (1633–1636):
Duke Joachim Ernst of Schleswig-Holstein-Sonderburg-Plön had the three-winged brick castle built as his residence during the Thirty Years' War.
Here are the most important epochs of the castle's history:
Origin:
The castle stands on the foundations of an older castle from the 12th century.
Construction period (1633–1636):
Duke Joachim Ernst of Schleswig-Holstein-Sonderburg-Plön had the three-winged brick castle built as his residence during the Thirty Years' War.
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Details
Informations
Elevation 110 m