Question: Ovida, Obida or Odiva, was the last Roman ruler of Dalmatia, and a general, of the western provinces, during which late period?
Sentence (from "Western Roman Empire"): The view that the Empire was impossible to govern by one emperor was established by Diocletian following the disastrous civil wars and disintegration of the Crisis of the 3rd century, and was instituted in Roman law by his introduction of the Tetrarchy in AD 285, a form of government which was legally to endure in one form or another for centuries.
Relevant evidence: No