Danish Nobility - Ducal Houses

Ducal Houses

Two families bear the Danish title of duke:

• Dukes of Schleswig (hertug af Slesvig): originally, descendants of Gerhard III, who was granted the Duchy of Jutland, which was taken back, but the title was recognized in 1386. In 1459 the title passed through a female heiress to the House of Oldenburg, descending to its branches of Augustenburg, Pløn, Beck, Glücksburg, Holstein-Gottorp and Sonderburg.

• Duke of Glücksbierg (hertug af Glücksbierg): 1818 primogeniture within the French ducal family of Decazes.