Nonnebakken
Odense, Denmark
Culture
Nonnebakken is a hill in Odense, Denmark. It is the site of one of Denmark's six former Viking ring castles, built during the reign of Sweyn Forkbeard, who had forced his father Harold Bluetooth to leave the country and seek refuge with the Jomsvikings on Wollin around 975.
From Wikipedia, CC BY-SA 4.0
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