Barony of Westerburg
The Barony of Westerburg (German: Herrschaft Westerburg), a small principality around the present day town of Westerburg in the Westerwald mountains of Germany, is first recorded in 1209. The eponymous castle, which had probably been built earlier than when it was mentioned for the first time in 1192, was the family seat of the lords of Westerburg, a branch of the lords of Runkel.