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 le
Detail from a 1593 engraving, showing the remains of the former ring fort of Nonnebakken
Silver penny dated around 995, with inscription on obverse 'SVEN REX AD DENER' ('Swein King of the Danes'), reverse 'GODPINE M AN DNER ('Godwine moneyer in Denmark')'. This is the earliest surviving example of the Latin alphabet in Denmark.