 Conrad had granted Franconia to his brother Eberhard on his succession, but when Eberhard rebelled against Otto I in 938, he was deposed from his duchy, which disintegrated in 939 on Eberhard's death into West or Rhenish Franconia (), and East Franconia ("") and was directly subordinated to the Reich.Only after that was the former considered to be under the sphere of the bishops of Würzburg as the true Franconia, its territory gradually shrinking to its present area.Meanwhile, the inhabitants of parts of present-day Upper and Middle Franconia, who were not under the control of Würzburg, probably also considered themselves to be Franks at that time, and certainly their dialect distinguished them from the inhabitants of Bavaria and Swabia.