Gundebold, Gondobaldus or Adgillis III (725

725

Year 725 was a common year starting on Monday of the Julian calendar. The denomination 725 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.- Europe :* Bede writes On the reckoning of time ...

–760

760

Year 760 was a leap year starting on Tuesday of the Julian calendar. The denomination 760 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.- China :* Emperor Xuanzong is placed under house arrest...

) was according to the Cronica der Friesen of Eggerik Benninga, King of the Frisians between 748 and 760.He would have been the son and successor of Adgillis II, whose existence is also uncertain.

Afterwards his son Radboud II would succeed him being the last independent king of the Frisians

King of the Frisians

Like most other German tribes, Frisian origin rests in the 5th century with leaders who named themselves kings. The earlier kings must be considered as some kind of warleaders, whose side was chosen by local powers and only during the time they were at war...

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Gundebold ruled on a Frisian territory east of the Lauwers

Lauwers

The Lauwers is a river in the Netherlands. It forms part of the border between the provinces of Friesland and Groningen. From the 730's to Widukind's defeat in 785 it was part of the border of the Frankish Empire....

 and the Frisian Groningen

Groningen (province)

Groningen [] is the northeasternmost province of the Netherlands. In the east it borders the German state of Niedersachsen , in the south Drenthe, in the west Friesland and in the north the Wadden Sea...

. In 734, the Franks conquered the Frisian king Poppo

Poppo (Frisian)

Poppo , also known as Bubo or Bobba, was a king of Frisia from the 8th century. After Aldgisl and Radboud he is the third Frisian ruler mentioned in the literature. He is possibly the last Frisian king...

, an ancestor of Gundobold, in the Battle of the Boarn

Battle of the Boarn

The Battle of the Boarn was an eighth century battle between the Franks and the Frisians near the mouth of the river Boarn in what is now the Dutch province of Friesland....

, in which most of the Friesian areas fell into the hands of the Merovingian Empire.

In 748 the Rex Frigionum granted military assistance to major-domo Pippin III as it is at war against the Saxons

Saxons

The Saxons were a confederation of Germanic tribes originating on the North German plain. The Saxons earliest known area of settlement is Northern Albingia, an area approximately that of modern Holstein...

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