Conrad II, Duke of Transjurane Burgundy
Conrad II the Younger was the Count of Auxerre from 864 until his death. He was a son of Conrad I of Auxerre, and Adelaide of Tours; an older brother of Hugh the Abbot; and a member of the Bavarian branch of the Welfs.
In 858, at the coaxing of Charles the Bald, his cousin, he and his brother betrayed Louis the German when he sent them on an espionage mission and went over to Charles, who rewarded them handsomely because he had lost his Bavarian honores. He acted as Duke of Transjurane (Upper) Burgundy from then until about 864.
- The Annals of Fulda. (Manchester Medieval series, Ninth-Century Histories, Volume II.) Reuter, Timothy (trans.) Manchester: Manchester University Press, 1992.