Duborg Castle (Danish: Duborg Slot, German: Duburg Schloss) sometimes also referred to as Flensborghus (German: Flensburghaus) was a fortification and castle in Flensburg, Schleswig during the Middle Ages and Early modern period.
Duborg Castle (Danish: Duborg Slot, German: Duburg Schloss) sometimes also referred to as Flensborghus (German: Flensburghaus) was a fortification and castle in Flensburg, Schleswig during the Middle Ages and Early modern period.