Barnes 2011, p. 30. Barnes, Timothy (2011). Constantine: Dynasty, Religion and Power in the Later Roman Empire. Oxford: Wiley-Blackwell. ISBN978-1-405-11727-2.
After his re-conquering of Roman Britain, he was given the title 'Redditor Lucis Aeternae', meaning 'The Restorer of Ethernal Light'.Bond, Sarah; Nicholson, Oliver (2018), Nicholson, Oliver (ed.), "Constantius I"(PDF), The Oxford Dictionary of Late Antiquity, Oxford University Press, doi:10.1093/acref/9780198662778.001.0001, ISBN978-0-19-866277-8, retrieved 25 August 2020, the nickname Chlorus (Green) is not older than the 6th century
After his re-conquering of Roman Britain, he was given the title 'Redditor Lucis Aeternae', meaning 'The Restorer of Ethernal Light'.Bond, Sarah; Nicholson, Oliver (2018), Nicholson, Oliver (ed.), "Constantius I"(PDF), The Oxford Dictionary of Late Antiquity, Oxford University Press, doi:10.1093/acref/9780198662778.001.0001, ISBN978-0-19-866277-8, retrieved 25 August 2020, the nickname Chlorus (Green) is not older than the 6th century
