Conference 'Aspects of Collegiality and the Imperial Power in Rome' (Principate and Late Antiquity)


Friday 15 October, 2.00-6.00pm and Saturday 16 October, 9.00am-1.00pm
Maison Française d'Oxford


Convened by Stéphane Benoist (Lille/MFO) and Dominic Moreau (Lille) as part of the Roman history and Late Antiquity Lille Seminar (HALMA, UMR 8164).


Participants can either attend onsite or online.
To attend the event online, please register here: 



To deal with Roman Imperial Power, a subject mostly studied and debated since Mommsen’s approach, and especially during the last decades, the Lille Roman History and Late Antiquity Seminar chooses the concept and practice of collegiality during a ‘Longue durée’, from the Antonines to the Justinians. The proposed six papers aim to reconsider how theories and practical approaches of the power of the Roman Principes deliver a real discourse about what was a Roman Emperor —particularly when two or more Augusti were in charge of the Imperium Romanum— and the concrete functioning of an Empire with no parallel in history.



Welcome (2pm): Pascal Marty (MfO director), Beate Dignas (Somerville College) & Stéphane Benoist (ULille, HALMA, MfO, Somerville College)

Friday afternoon (2.30-6pm): Principate

Chair: Nicholas Purcell (Brasenose College)

2.30-3.30pm: Stéphane Benoist (ULille, HALMA, MfO, Somerville College), “The Antonine practice of collegiality and the construction of imperial power since Augustus”

3.30-4.30pm: Benet Salway (UCL), “Collegiality and individuality amongst the emperors of the Severan period”

4.30-5pm: Coffee break

5-6pm: Simon Corcoran, (Newcastle), “The limits of structured collegiality: the creation and dissolution of the tetrarchic system”


Saturday morning (9am-1pm): Late Antiquity

Chair: Monica Hellstrom (Corpus Christi College)

9-10am: Peter Van Nuffelen (Ghent), “Struggling with emperors. Collegiality and chronology in late antique historiography”

10-11am: Jeroen Wijnendaele (Ghent), “Imperial Health, Collegial Rule, and the Fate of the Theodosian Dynasty in the West”

11-11.30am: Coffee break

11.30am-12.30pm: Dominic Moreau (ULille, HALMA), “The Justinians: a dynasty that didn’t rule through collegiality, really?”

12.30-1pm: Concluding remarks by Nicholas Purcell (Brasenose College)


Pic: Marcus Aurelius’ Aureus (RIC III, Marcus Aurelius 8), 161, Rome Obverse: IMP CAES M AVREL ANTONINVS AVG; Head of Marcus Aurelius, bare, right. Reverse: CONCORDIAE AVGVSTOR TR P XV COS III; Marcus Aurelius and Lucius Verus standing left and right, facing each other, clasping right hands: each holds rolls in left hand at side.