Eberhard, after succeeding his father Arnulf as…
938 CE
Eberhard, after succeeding his father Arnulf as Duke of Bavaria, had quickly come into conflict with Otto, as Eberhard opposes the king's sovereignty over Bavaria as part of the peace treaty between the former King Henry and Arnulf.
Refusing to recognize Otto's supremacy, Eberhard rebels against the King.
In two campaigns in the spring and fall of 938, Otto defeats and exiles Eberhard from the kingdom and strips him of his titles.
In his place, Otto appoints Eberhard's uncle Berthold as the new Duke of Bavaria on the condition that Berthold recognize Otto as the sole authority to appoint bishops and to administer royal property within the duchy.
It is known that Berthold was a count in the March of Carinthia in 926 while his elder brother Arnulf the Bad was Bavarian duke.
In 927, German King Henry the Fowler had vested him with ducal rights in Carinthia.