List of duchesses of Bouillon
There have been duchesses of Bouillon, in present-day Belgium, since the tenth century.
Titular Duchess of Bouillon
House of Rohan, 1816–1918
The Congress of Vienna in 1816 awarded the title of Duke of Bouillon to the House of Rohan, descendants ofMarie Louise de [La Tour d'Auvergne].
In 1918 Austria became a republic and all noble titles were abolished.