What was the name of Diocletian's four-person ruling system?
Quadrumvirate
Tetrarchy
Quartet
Quadrivium
Answer
Diocletian established the Tetrarchy, or "rule of four," where each tetrarch would rule over a quarter-division of the empire. This system aimed to stabilize the empire and ensure efficient governance.
Mastering the Mighty Diocletian: A Roman Emperor's Reign Revealed