He was ordained bishop in Regensburg in 739 by Saint Boniface.
Gaubald was also abbot-bishop or mitered abbot of St. Emmeram's Abbey.
In 740 he moved the bones of the late Emmeram of Regensburg to the crypt in the later Benedictine abbey.
On his death, Gaubald was buried in the Ramwoldkrypta in the Abbey.
This article about a German Catholic bishop or archbishop is a stub.