 Unlike the other stem duchies, Franconia did not evolve into a stable political entity, though the local Salian counts held large estates in the western parts (Rhenish Franconia).In 906 the Conradine relative Count Conrad the Younger in the Lahngau is mentioned as a "dux Franconiae".Upon the extinction of the East Frankish Carolingians in 911, he was elected the first German king and was succeeded as Franconian duke by his younger brother Eberhard.