Conrad II the Younger was the

Count of Auxerre The County of Auxerre is a former state of current central France, with capital in Auxerre. History The first count attested by the sources is one Ermenaud I of Auxerre, Ermenaud, a companion of Charlemagne who reigned around 770. In 859 Charles ...

from 864 until his death in 876. He was a son of

Conrad I of Auxerre Conrad I the Elder (died about 864) was the count of several counties, most notably the Aargau and Auxerre, around Lake Constance, as well as Paris from 859 to 862/864. He was also the lay abbot of Saint-Germaine in Auxerre. Conrad's father was We ...

, and

Adelaide of Tours Adelaide (Aelis) of Tours ( 820 – c. 866) was a daughter of Count Hugh of Tours and his wife Ava, who was a sister of Matfrid, Count of Orléans. She married Conrad I, Count of Auxerre, with whom she had at least two children, Hugh and Conra ...

; an older brother of

Hugh the Abbot Hugh the Abbot (died 12 May 886) was a member of the Welf family, a son of Conrad I of Auxerre and Adelaide. After his father's death, his mother apparently married Robert the Strong, the margrave of Neustria. On Robert's death in 866, Hugh bec ...

; and a member of the

Bavaria Bavaria ( ; ), officially the Free State of Bavaria (german: Freistaat Bayern, link=no ), is a state in the south-east of Germany. With an area of , Bavaria is the largest German state by land area, comprising roughly a fifth of the total l ...

n branch of the Welfs. In 858, at the coaxing of

Charles the Bald Charles the Bald (french: Charles le Chauve; 13 June 823 – 6 October 877), also known as Charles II, was a 9th-century king of West Francia (843–877), king of Italy (875–877) and emperor of the Carolingian Empire (875–877). After a se ...

, his cousin, he and his brother betrayed

Louis the German Louis the German (c. 806/810 – 28 August 876), also known as Louis II of Germany and Louis II of East Francia, was the first king of East Francia, and ruled from 843 to 876 AD. Grandson of emperor Charlemagne and the third son of Louis the P ...

when he sent them on an espionage mission and went over to Charles, who rewarded them handsomely because he had lost his Bavarian ''

honores A fief (; la, feudum) was a central element in medieval contracts based on feudal law. It consisted of a form of property holding or other rights granted by an overlord to a vassal, who held it in fealty or "in fee" in return for a form of f ...

''. He acted as Duke of Transjurane (Upper) Burgundy from then until about 864. He married

Waldrada of Worms Waldrada or Waldraith (born 801) was a Frankish noblewoman who lived during the 9th century. Her father was Adrian, Count of Orléans (758–824), and her mother was also named Waldrada, daughter of Adalhelm of Autun. Waldrada was first married ...

, by whom he left a son, Rudolf, who later became King of Transjurane Burgundy, and a daughter, Adelaide of Auxerre, who married

Richard, Duke of Burgundy Richard, Duke of Burgundy (858–921), also known as Richard of Autun or Richard the Justiciar, was Count of Autun from 880 and the first Margrave and Duke of Burgundy. He eventually attained suzerainty over all the counties of Burgundy save Mâ ...

, and had issue. Some online family trees may have him also married to Judith of Friuli, but there is no source for this, and she is not known to have married to anyone.

References

Sources

*{{cite book , chapter=The Carolingian Kingdoms (877-913) , first=Rene , last=Poupardin , title=Cambridge Medieval History: Germany and the Western Empire , volume=III , editor-first1=H.M. , editor-last1=Gwatkin , editor-first2=J.P. , editor-last2=Whitney , editor-first3=J.R. , editor-last3=Tanner , editor-first4=C.W. , editor-last4=Previte-Orton , publisher=Cambridge at the University Press , year=1964 Nobility of the Carolingian Empire 876 deaths Dukes of Burgundy Year of birth unknown