Jublains is a commune in the Mayenne department in north-western France. Jublains, formerly spelled Jubleins, is the site of ancient Noeodunum (also spelled Noiodunum or Noviodunum), the capital of the ancient Gallic tribe of the Diablintes, later occupied and settled by Romans and called Civitas Diablintum. Noeodunum (Νοιόδουνον in Greek language sources), was the chief city of the Diablintes, or of the Aulircii Diaulitae, as the name appears in the Greek texts of Ptolemy (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 Maye