Page "Diocletian" Paragraph 26

Some time after his return, and before 293, Diocletian transferred command of the war against Carausius from Maximian to Flavius Constantius.

Constantius was a former governor of Dalmatia and a man of military experience stretching back to Aurelian's campaigns against Zenobia ( 272 – 73 ).

He was Maximian's praetorian prefect in Gaul, and the husband to Maximian's daughter, Theodora.

On 1 March 293 at Milan, Maximian gave Constantius the office of Caesar.

In the spring of 293, in either Philippopolis ( Plovdiv, Bulgaria ) or Sirmium, Diocletian would do the same for Galerius, husband to Diocletian's daughter Valeria, and perhaps Diocletian's praetorian prefect.

Constantius was assigned Gaul and Britain.

Galerius was assigned Syria, Palestine, Egypt, and responsibility for the eastern borderlands.