The article is about the historical figure. For the Japanese magazine, see Gunzo

Gunzo (magazine)

is a Japanese monthly literary magazine published by Kodansha. It was launched in October 1946 as oriented publication. The past contributors for the magazine include: Kenzaburō Ōe, Haruki Murakami and Yoriko Shono...

.

Gunzo (also Cunzo) was a 7th century duke of the Alamanni

Alamanni

The Alamanni, Allemanni, or Alemanni were originally an alliance of Germanic tribes located around the upper Rhine river . One of the earliest references to them is the cognomen Alamannicus assumed by Roman Emperor Caracalla, who ruled the Roman Empire from 211 to 217 and claimed thereby to be...

 under Frankish

Franks

The Franks were a confederation of Germanic tribes first attested in the third century AD as living north and east of the Lower Rhine River. From the third to fifth centuries some Franks raided Roman territory while other Franks joined the Roman troops in Gaul. Only the Salian Franks formed a...

 sovereignty. His residence was at villa Iburninga (today's Überlingen

Überlingen

Überlingen is a city on the northern shore of Lake Constance . After the city of Friedrichshafen, it is the second largest city in the Bodenseekreis , and a central point for the outlying communities...

) at Lake Constance

Lake Constance

Lake Constance is a lake on the Rhine at the northern foot of the Alps, and consists of three bodies of water: the Obersee , the Untersee , and a connecting stretch of the Rhine, called the Seerhein.The lake is situated in Germany, Switzerland and Austria near the Alps...

. Gunzo was the father of Fridiburga, who was engaged to Frankish king Sigibert II (who was murdered in 613).

Gunzo organized a synod in Konstanz

Konstanz

Konstanz is a university city with approximately 80,000 inhabitants located at the western end of Lake Constance in the south-west corner of Germany, bordering Switzerland. The city houses the University of Konstanz.-Location:...

 in 635, which resulted in the election of deacon John of Grab as bishop of Constance, succeeding the deceased bishop Gaudentius. This event is the earliest certain attestation of Constance as an independent bishopric.

It is disputed whether Gunzo ruled over all of Alemannia, or only over the eastern part. If the former is the case, he is to be identified either with Gundoin

Gundoin, Duke of Alsace

Gundoin was the first Duke of Alsace in the middle of the seventh century. He was a Frankish nobleman from the Meuse-Moselle basin. He was, according to the author of the Vita Sadalbergae, an "illustrious man , opulent in wealth and fame according to the highest secular dignity and skilled in...

, the founder of the Moutier-Grandval monastery, or with the predecessor of the latter, duke Uncilin.