Duchy of Franconia
medieval stem duchy in the Kingdom of Germany
The Duchy of Franconia (German: Herzogtum Franken) was one of the five duchies of East Francia. It existed from 882–1125.

The territory of the Duchy of Franconia was the part of the core Frankish realm of Austrasia which did not pass to Middle Francia/Lotharingia following the Treaty of Verdun