‘Concluding remarks: Ideology made and unmade,’ in C. Rollinger and F. Carlà-Uhink (eds), The Tetrarchy as Ideology. (Re)Presentations and (Re)Figurations of an Imperial Power (Stuttgart: Franz Steiner Verlag, 2023), 317-25. - Mark Humphries (The Tetrarchy as Ideology. (Re)Presentations and (Re)Figurations of an Imperial Power, ed. C. Rollinger and F. Carlà-Uhink, 2023)