Jublains is a commune

Communes of France

The commune is the lowest level of administrative division in the French Republic. French communes are roughly equivalent to incorporated municipalities or villages in the United States or Gemeinden in Germany...

 in the Mayenne

Mayenne

Mayenne is a department in northwest France named after the Mayenne River.-History:Mayenne is one of the original 83 departments created during the French Revolution on March 4, 1790. The northern two thirds correspond to the western part of the former province of Maine...

 department in north-western France

France

The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

.

Jublains, formerly spelled Jubleins, is the site of ancient Noeodunum (also spelled Noiodunum or Noviodunum), the capital of the ancient Gallic

Gaul

Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

 tribe of the Diablintes

Diablintes

The Diablintes or Diablintres or Diablindi or Aulerci Diaulitae were an ancient people of Gaul, a division of the Aulerci. Julius Caesar mentions the Diablintes among the allies of the Veneti and other Armoric states whom Caesar attacked. The Diablintes are mentioned between the Morini and Menapii...

, later occupied and settled by Romans and called Civitas Diablintum. Noeodunum ( in Greek language

Greek language

Greek is an independent branch of the Indo-European family of languages. Native to the southern Balkans, it has the longest documented history of any Indo-European language, spanning 34 centuries of written records. Its writing system has been the Greek alphabet for the majority of its history;...

 sources), was the chief city of the Diablintes, or of the Aulircii Diaulitae, as the name appears in the Greek texts of Ptolemy

Ptolemy

Claudius Ptolemy , was a Roman citizen of Egypt who wrote in Greek. He was a mathematician, astronomer, geographer, astrologer, and poet of a single epigram in the Greek Anthology. He lived in Egypt under Roman rule, and is believed to have been born in the town of Ptolemais Hermiou in the...

 (ii. 8. § 7). There is no doubt that the old Gallic name of the town was exchanged for that of the people, Diablintes - which Civitas Diablintum. In a middle age document, referred to by D'Anville, the town's name is written Jublent, and hence comes the corrupted name Jublains. Jublains is a small place not far from Mayenne

Mayenne, Mayenne

Mayenne is a commune in the Mayenne department in north-western France. It is a sub-prefecture of the department. It is situated on the river Mayenne.-History:In medieval times, the town was the seat of the Lords of Mayenne...

, where some Roman remains have been discovered.

A name "Nudionnum" occurs in the Theodosian Table between Araegenus (modern Vieux

Vieux, Calvados

-Sights:*The archaeological museum of Vieux la Romaine .*Villa of Bas de Vieux-External links:*...

 in Calvados

Calvados

The French department of Calvados is part of the region of Basse-Normandie in Normandy. It takes its name from a cluster of rocks off the English Channel coast...

) and Subdinnum (modern Le Mans

Le Mans

Le Mans is a city in France, located on the Sarthe River. Traditionally the capital of the province of Maine, it is now the capital of the Sarthe department and the seat of the Roman Catholic diocese of Le Mans. Le Mans is a part of the Pays de la Loire region.Its inhabitants are called Manceaux...

), and it is marked as a capital town. It appears to be the Noeodunum of the Diablintes, hence Jublains.