Career
He was first mentioned as a count in 941. In 960, he was mentioned as count in the Radenzgau. In 961, he appears as count on the lower Raab and in 973 as count in the Volkfeld shire.
After successful battles in Bohemia and Hungary, he is named as margrave in 976.
In 980, he appears as count in eastern Franconia. His background is disputed.
The most likely theory is that he was a son (or grandson) of Arnulf, Duke of Bavaria. Another theory sees him as the son of Arnulf"s brother Berthold, Duke of Bavaria.
Yet another theory puts him into the Popponids family.
The Comes Bertholdus who was mentioned in 941, was tasked by Emperor Otto I with guarding Count Lothar of Walbeck, who had been taken prisoner. She later initiated the construction of the minster in Schweinfurt, where she was buried. In 964, Berthold was tasked by Otto with guarding another prisoner, King Berengar II of Italy, who was kept prisoner in Bamberg.
In 973, Berthold participated in the ousting of the rebellious Henry II, Duke of Bavaria.
