Uncelen, Uncelin, or Uncilin (from Latin Uncelenus; died c. 613) was the Duke of Alemannia from 587 to 607. He was appointed to replace Leutfred

Leutfred

Leutfred, Leutfried, or Leudefredus was the Duke of Alemannia from 570. He was deposed from his ducal office in 587 by the Frankish king Childebert II and replaced by Uncilin.-Sources:...

 by the Austrasia

Austrasia

Austrasia formed the northeastern portion of the Kingdom of the Merovingian Franks, comprising parts of the territory of present-day eastern France, western Germany, Belgium, Luxembourg and the Netherlands. Metz served as its capital, although some Austrasian kings ruled from Rheims, Trier, and...

n king Childebert II

Childebert II

.Childebert II was the Merovingian king of Austrasia, which included Provence at the time, from 575 until his death in 595, the eldest and succeeding son of Sigebert I, and the king of Burgundy from 592 to his death, as the adopted and succeeding son of his uncle Guntram.-Childhood:When his father...

.

On Childebert's death in 595, the Thurgau

Thurgau

Thurgau is a northeast canton of Switzerland. The population, , is . In 2007, there were a total of 47,390 who were resident foreigners. The capital is Frauenfeld.-History:...

, Kembsgau, and Alsace

Alsace

Alsace is the fifth-smallest of the 27 regions of France in land area , and the smallest in metropolitan France. It is also the seventh-most densely populated region in France and third most densely populated region in metropolitan France, with ca. 220 inhabitants per km²...

 passed to the Kingdom of Burgundy

Kingdom of Burgundy

Burgundy is a historic region in Western Europe that has existed as a political entity in a number of forms with very different boundaries. Two of these entities - the first around the 6th century, the second around the 11th century - have been called the Kingdom of Burgundy; a third was very...

, then under the rule of Theuderic II

Theuderic II

Theuderic II , king of Burgundy and Austrasia , was the second son of Childebert II...

.

In 605 Theuderic went to war with his brother Theudebert II

Theudebert II

Theudebert II , King of Austrasia , was the son and heir of Childebert II. He received the kingdom of Austrasia plus the cities of Poitiers, Tours, Vellay, Bordeaux, and Châteaudun, as well as the Champagne, the Auvergne, and Transjurane Alemannia, on the death of his father in 595, but was...

, who ruled Austrasia. His army, which did not wish to go to war, he placed under the command of his majordomo

Mayor of the Palace

Mayor of the Palace was an early medieval title and office, also called majordomo, from the Latin title maior domus , used most notably in the Frankish kingdoms in the 7th and 8th centuries....

 Protadius

Protadius

Protadius was the mayor of the palace of Burgundy from 604, when he displaced his rival Berthoald, until his death two years later. He was originally the noble lover of Brunhilda, the grandmother of and regent for King Theuderic II...

 with instructions to induce the soldiers to fight. The next year (606) at Quierzy-sur-Oise

Quierzy-sur-Oise

Quierzy is a commune in the Aisne department in Picardy in northern France, straddling the Oise River between Noyon and Chauny.-History:...

, Theuderic re-assembled the army, but the men once again refused to fight their countrymen and the king ordered Uncelen to coerce them. Uncelen, however, declared that the king had ordered the Protadius' death. The despised majordomo was promptly killed by the warriors and the king was forced to sign a treaty. Queen Brunhilda, who had induced Theuderic to war, had Uncelen's foot cut off. According to the Lex Alamannorum

Lex Alamannorum

The terms Lex Alamannorum and Pactus Alamannorum refer to two early medieval law codes of the Alamanni. They were first edited in parts in 1530 by Johannes Sichard in Basel.-Pactus Alamannorum:...

, a duke was only eligible for office if he could mount a horse. Being unable to continue exercising his office, Uncelen was removed.