Talk:Praetorian prefecture of Gaul

What does a Praetorian prefect do?
There is a list of Praetorian prefects, but no description of what this position entails. Was this person a type of governor, viceroy, or something like that? --AB (talk) 14:29, 12 May 2012 (UTC)

Diocletian?
The first sentence under History states, "The prefecture was established after the death of Constantine I in 337," cf. Hispania: "After Diocletian's Tetrarchy reform in AD 293, the new Diocese of Hispania became one of the four dioceses—governed by a vicarius—of the praetorian prefecture of Gaul. Manannan67 (talk) 05:27, 4 January 2021 (UTC)