Diocese of Hispania

The Diocese of Hispania was a late antique administrative unit (Dioecesis) of the Roman Empire on the Iberian Peninsula. It existed from 314 to about 409 AD. Its capital was Augusta Emerita. The Diocese was governed by a vicarius responsible to the praetorian prefect of Gaul.

Roman diocese from around 293 to 337
Provinces of Hispania under Diocletian (Mauretania Tingitana not shown)


The Diocese of Hispania comprised the following 6 provinces:

The Balearic Islands were detached from Terraconensis in the 4th century as the independent province of Hispania Balearica


The Roman Empire was initially divided into 46 provinces, which were subdivided by Diocletian around 300 AD into 101 provinces, which in turn were grouped into 12 dioceses. At the division of the Empire in 395, the structure was changed into four prefectures, 15 dioceses and 119 provinces. With the conquest of Hispania by the Vandals, Alans, and Suebi in 409 the diocese began to collapse.

Further readingEdit

  • Barnes, Timothy Dacid (1982). The new empire of Diocletian and Constantine. Harvard University Press. ISBN 9780674280670.
  • Mommsen, Theodor (1863). Verzeichniss der römischen provinzen aufgesetzt um 297 (in German). Retrieved Sep 25, 2019.
  • Notitia Dignitatum. Retrieved Sep 25, 2019.