ガリア・ナルボネンシス
Under Diocletian (284–305), the province was extended after it was given parts of Gallia Narbonensis and Alpes Cottiae, and was allocated to the "praefectura Galliarum" (Diocese of Vienne). The capital was transferred to Eburodunum (modern Embrun), which was initially part of the Alpes Cottiae.