What name was given to the son of the man who defeated the usurper Allectus ?
Britannia Secunda Britannia Secunda or Britannia II (Latin for "Second Britain") was one of the provinces of the Diocese of "the Britains" created during the Diocletian Reforms at the end of the 3rd century. It was probably created after the defeat of the usurper Allectus by Constantius Chlorus in  296 and was mentioned in the c. 312 Verona List of the Roman provinces. Its position and capital remain uncertain, although it probably lay further from Rome than Britannia I. At present, most scholars place Britannia II in Yorkshire and northern England. If so, its capital would have been Eboracum (York).
Divi filius Divi filius is a Latin phrase meaning "son of a god", and was a title much used by the Emperor Augustus, the grand-nephew and adopted son of Julius Caesar.