Irmengarde von Dießen-Schwarzenberg Peerage person ID=589456 (b. 1100) Parents NN Engelbert of Schwarzenburg Engelbert, Duke of Carinthia Children Adolf I of Werden Frederick II Engelbert I, Count of Berg Arnold von Berg Eberhard I, Count of Berg-Altena Bruno III of Berg Siblings Margareta von Schwarzenburg Partners Adolf II (IV) of Berg