succeeded to the throne of Britain when his father died at York eleven years later. These accounts have no historical validity: Constantius had divorced Helena before he went to Britain. Similarly, the History of the Britons traditionally ascribed to Nennius claims the inscribed tomb of "Constantius the Emperor" was still present in the 9th century in the Roman fort of Segontium (near present-day Caernarfon, in North Wales). David Nash Ford credited the monument to Constantine, the supposed son of Magnus Maximus and Elen, who was said to have ruled over the area prior to the Irish invasions. Notes Sources Ancient sources Aurelius Victor, Epitome de Caesaribus Zosimus, Historia Nova Modern sources Southern, Pat. The Roman Empire from Severus to Constantine, Routledge, 2001 Potter, David Stone, The Roman Empire at Bay, AD 180–395, Routledge, 2004 DiMaio, Robert, "Constantius I Chlorus (305–306 A.D.)", De Imperatoribus Romanis, 1996 References External links 3rd-century births 306 deaths 3rd-century Roman consuls 4th-century Roman consuls 3rd-century Roman emperors 4th-century Roman emperors Ancient Romans in Britain British traditional history Caesars (heirs apparent) Constantinian dynasty Deified Roman emperors Equestrian commanders of vexillationes Flavii Illyrian people Tetrarchy Illyrian emperors