Transjurania
Transjurania ( Latin Burgundia Transiurana , French Bourgogne transjurane ) was in the second half of the 9th century the name for the part of the Kingdom of Burgundy that (viewed from the west) lay beyond the Jura , but also in front of the main Alpine ridge , i.e. essentially the today's western Switzerland . The main cities in the area were Geneva , Lausanne and Sion , and the north side of the Alpine crossing on the Great St. Bernhard also belonged to them.
Transjurania was a duchy at the time of the Carolingians , later a margraviate . Duke was the bosonide Hugbert , the son of Boso of Arles and - through his sister Teutberga - brother-in-law of King Lothar II of Lorraine ; when Lothar Teutberga violated in 857 because of alleged fornication, Hugbert rose up against his brother-in-law and went over to Karl the Bald . In 859 Lothar passed Transjuranien on to his brother Ludwig II , who militarily opposed the rebellious Hugbert in the person of the Guelph Konrad II of Auxerre . Hugbert was defeated by Konrad and lost his life in 864.
In 866 Konrad von Auxerre was appointed Margrave of Transjurania and thus Hugbert's successor; In 872 he was followed by his son Rudolf , who in 888, after the death of Charlemagne, benefited from the process of disintegration of the Carolingian Empire and had himself proclaimed King of Burgundy by the barons in Saint-Maurice-d'Agaune .
The Margraviate of Transjurania went into the newly created kingdom.