The tables below are reproductions of the charts found in chapter V of The New Empire of Diocletian and Constantine (Cambridge: Harvard University Press, 1982) by T.D. Barnes. Minor stylistic changes have been made to improve consistency.

The tables below are adapted and reproduced with permission from T.D. Barnes, The New Empire of Diocletian and Constantine (Cambridge: Harvard University Press, 1982).

Click here to access a downloadable pdf of this document.

Principal Residences

YearLocation
308–316Sirmium and perhaps Naissus
316/7On campaign
317–324Nicomedia

Attested Movements

DateEventSource
308, Nov. 11Invested as Augustus at CarnuntumLactantius, Mort. Pers. 29.1 f.; Chr. Min. 1.231
310, June 27Victory over the SarmatiansILS 664; Tables 6, 7
311, June 9At SerdicaFIRA 1.93
311, summerNegotiates with Maximinus at the BosporusLactantius, Mort. Pers. 36.1 f.
313, early Feb.Leaves Carnuntum and travels posthaste to ItalyTheomnestus, Hippiatrica Berolnensia 34.12
313, Feb.Marries Constantine’s sister at MilanLactantius, Mort. Pers. 46.8 ff.
313, early MayAdvances to NicomediaLactantius, Mort. Pers. 48.1
313, June 13At NicomediaLactantius, Mort. Pers. 48.1
313, summerCrosses Asia MinorLactantius, Mort. Pers. 49.1
313, autumnAt AntiochLactantius, Mort. Pers. 50.6; Eusebius, HE 9.11
313 or 314Campaigns on the Persian frontierILS 8942; 696
314 or 315Campaigns against the GothsILS 8942; 696
Between 314 and 316At Tropaeum TraianiILS 8938
316, Sept./Oct.At SirmiumOrigo 16; [Julian], Epp. 181, 449a
316, Oct. 8At CibalaeOrigo 16; Chr. Min. 1.231 (year wrongly given as 314)
316, Oct. 9At SirmiumOrigo 16
316, after Oct. 9Flees to Dacia and then to AdrianopleOrigo 17; [Julian], Epp. 181, 449a
c. 317, Jan.Defeated at the battle of the Campus Adriensis and withdraws to BeroeaOrigo 18
c. 318Campaign against the SarmatiansP. Oxy. 889
318, June 23At Byzantium?CTh 1.27.1
323, Apr. 13At Byzantium?CTh 11.30.12, 12.1.8
324, July 3Defeated at AdrianopleOrigo 24; Zosimus 2.22.4 ff., cf. CIL 1, p. 268; Chr. Min. 1.232
324, July?–Sept.?Besieged in ByzantiumOrigo 25; Zosimus 2.25.1 ff.
324, Sept.Flees to ChalcedonOrigo 27; Zosimus 2.25.1
324, Sept. 18Retreats to NicomediaPraxagoras, FGrH 219; Zosimus 2.26.3; Philostorgius, p. 180.13 ff. Bidez
324, Sept. 19Abdicates and is then sent to ThessalonicaOrigo 28–29; Epitome 41.7; Zosimus 2.28

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