The tables below are reproductions and syntheses of the charts found in chapter V of The New Empire of Diocletian and Constantine (Cambridge: Harvard University Press, 1982) and appendix 9 of Athanasius and Constantius: Theology and Politics in the Constantinian Empire (Cambridge: Harvard University Press, 1993) both by T.D. Barnes. Preference was given to Athanasius and Constantius where differences exist. 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) and T.D. Barnes, Athanasius and Constantius: Theology and Politics in the Constantinian Empire (Cambridge: Harvard University Press, 1993).

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Principal Residences

YearLocation
324–c. 330With Constantine
c. 330–335With Constantine?
335–350Antioch for the winter, with summers on campaign in Mesopotamia (Libanius, Orat. 18.206/7)

Attested Movements

DateEventSource
324, Nov. 8Proclaimed Caesar at ByzantiumThemistius, Orat. 4, p. 63a Dindorf; CIL 1, p. 276; Chr. Min. 1.232
326Accompanies Constantine to RomeRIC 7.207, Trier 467–468, cf. 328, Rome 279
336, July 25In ConstantinopleEusebius, VC 4.49, cf. Triac. 3.4
337, springIn Antioch when he learns of Constantine’s last illnessZonaras 13.4
337, MayTravels to Nicomedia, but finds that Constantine is already deadJulian, Orat. 1, 16d; Zonaras 13.4
337, shortly after May 22Escorts Constantine’s body to Constantinople and supervises the funeralEusebius, VC 4.70; Libanius, Orat. 59.74; Chr. Min. 1.236
337, July?At ViminaciumAthanasius, Apol. ad Const. 5.2
337, Aug.?/Sept.?Campaign against the SarmataeCIL 3.12483
337, c. Sept.Confers with Constantinus and Constans in PannoniaJulian, Orat. 1.19a, cf. Libanius, Orat. 59.75
337, Sept.?Returns to ConstantinopleSocrates, HE 2.7
337, Nov.?Returns to Antioch for the winterSocrates, HE 2.7, cf. Libanius, Orat. 59.75, 77
338, springAt Caesaarea in CappadociaAthanasius, Apol. ad Const. 5.2
338Restores Arsaces to the throne of ArmeniaJulian, Orat. 1, 20d–21a, cf. Libanius, Orat. 59.76–80
338, Oct. 11At AntiochCTh 12.1.23
338, Oct. 28At EmesaCTh 12.1.25
338, Dec. 27At AntiochCTh 2.6.4
339, c. Jan.At AntiochAthanasius, Ep. enc. 2.1; Hist. Ar. 10.1
339 or 340At HierapolisP. Abinn. 1.8–10
340, summerInvades Persian territoryItinerarium Alexandri, pr. 1, cf. 4
340, Aug. 12At EdessaCTh 12.1.30 (the place of issue is transmitted as Bessae)
340, Sept. 9At AntiochCTh 6.4.5/6
341, Jan. 6Attends the ‘Dedication Council’ at AntiochAthanasius, Syn. 25.1; Philostorgius p.212.19–22 Bidez
341, Feb. 12At AntiochCTh 5.13.1/2
341/2Winters in AntiochSocrates, HE 2.13.5, cf. Jerome, Chronicle 235; Chr. min. 1.236
342, earlyVisits Constantinople to expel the bishop Paul and returns at once to AntiochLibanius, Orat. 59.94–97; Socrates, HE 2.13.7, cf. Jerome, Chronicle 235; Chr. min. 1.236
342, Mar. 31–May 11In AntiochCTh 3.12.1; 12.1.33/4 (Apr. 5, 8); 11.36.6
343, Feb. 18At AntiochCTh 9.21.5
343, June 9–July 4In HierapolisCTh 8.1.1 (319 mss.); 12.1.35 (June 27); 15.8.1
343, summer/autumnWins a victory over the PersiansAthanasius, Hist. Ar. 16.2, cf. Festus, Brev. 27
343, Oct./Nov.Visits Constantinople?
344, c. Apr.At AntiochTheodoretus, HE 2.8.56, 9.9–10, cf. Athanasius, Hist. Ar. 20.5
344?, summerDefeats the Persians near SingaraJulian, Orat. 1, 26a; Libanius, Orat. 59.88, 99–120; Jerome, Chronicle 236; Chr. min. 1.236 (both giving the date as 348), cf. Festus, Brev. 27
345At NisibisCTh 11.7.5, cf. Ephraem, Carmina Nisibena 13.4–6, 14/5
345, summerAt EdessaAthanasius, Apol. c. Ar. 51.6
346, Mar. 21At AntiochCTh 10.14.1 (315 mss.)
346, c. Sept.At AntiochAthanasius, Apol. ad Const. 5.2; Hist. Ar. 44.5, Hist. ac. 1.2; Index 17; Jerome, Chronicle 236
347, Mar. 8At AncyraCTh 11.36.8
347?, springThemistius delivers his first imperial panegyric before Constantius at AncyraThemistius, Orat. 1
347, May 11At Hierapolis?CTh 5.6.1
348?, summerEngages the Persians in battle near SingaraFestus, Brev. 27
349, Apr. 1At AntiochCTh 12.1.39
349, summerAt Singara, then EmesaAthanasius, Hists. ar. 7.3
349, Oct. 3At Constantinople?CTh 12.2.1 + 15.1.6
350, springAt EdessaPhilostorgius, HE 3.22
350, summerIn Antioch while Shapur besieges Nisibis?Theodoretus, HE 2.30.1, 9/10, 31.1
350Visits Nisibis after the siege?Zonaras 13.7 (p. 195.4–7 Dindorf)
350, autumnSets out westward from AntiochPhilostorgius, p. 215.22–24 Bidez
350Travels via Heraclea to SerdicaZonaras 13.7 (pp. 195.19–196.2 Dindorf)
350, Dec. 25Engineers the abdication of Vetranio at NaissusJerome, Chronicle 238 (place and year); Chr. min. 1.238 (day: year wrongly given as 351); Zosimus 2.44.3/4
351, Mar. 15Proclaims Gallus Caesar at SirmiumChr. min. 1.238
351, summer and autumnIn Sirmium before and during the campaign against MagnentiusSulpicius Severus, Chron. 2.38.5–7; Socrates, HE 2.28.23; Zosimus 2.45.3, 48.3
351, Oct.?Present at the Council of Sirmium which deposed PhotinusSocrates, HE 2.28.23, 29.1
352, Feb. 26At SirmiumCJ 6.22.5
352, May 12At SirmiumCTh 3.5.1 (319 mss.)
352, summerCampaign against the Sarmatae?
352, Sept.?Enters ItalyChr. min. 1.67 (Naeratius Cerealis becomes praefectus urbi on Sept. 27)
352, Nov. 3At MilanCTh 15.14.5
353, spring–summerIn MilanHist. ac. 1.7, cf. Index 25; CTh 11.1.6 + 12.1.42 (May 22: year emended from 354) 16.8.7 (July 3: 357 mss.)
353, Sept. 6At LugdunumCTh 9.38.2 (354 mss.)
353, c. Oct.–354, springWinters in ArlesAmmianus 14.5.1; CTh 8.7.25 (Nov. 3: 326 mss.); Ammianus 14.10.1
354, springAt ValentiaAmmianus 14.10.1/2
354Crosses the Rhine at RauracumAmmianus 14.10.6
354, autumn–355, springWinters in MilanAmmianus 14.10.16; CTh 11.34.2 (Jan. 1); CJ 6.22.6 (Feb. 18)
355, c. JuneConducts expedition into RaetiaAmmianus 15.4.1
355Goes to winter quarters in MilanAmmianus 15.4.13, cf. Sulpicius Severus, Chron. 2.39.3, 8 (Council of Milan)
355, July 6–356, July 5In MilanCTh 14.3.2; CTh 12.1.43 (July 17); 1.5.5 (July 18); 6.29.1 (July 22); 2.1.2 (July 25); 12.12.1 (Aug. 1); 9.34.6 (Oct. 31); 16.10.6 (356, Feb. 19); 9.42.2 (Mar. 8); 11.16.8 (Apr. 1: 357 mss.); 11.16.7 (Apr. 2); 6.4.8–10 (Apr. 11); 6.29.2 (Apr. 17: 357 mss.); 13.10.3 (Apr. 29: 357 mss.); 9.17.4 = CJ 9.19.4 (June 13: 357 mss.); CTh 8.5.8 (June 24: 357 mss.); 1.2.7 (July 5)
355, Nov. 6Proclaims Julian Caesar at MilanAmmianus 15.8.17; Chr. min. 1.238; CIL 1, p. 277; Socrates, HE 2.34.5
355, Dec. 1Escorts Julian out of the city, then returns to MilanAmmianus 15.8.18
356, summer/autumnCampaign against the Alamanni on the Upper RhineAmmianus 16.12.15/6
356, July 25At MessadensisCTh 11.30.25 (355 mss.)
356, Sept. 2At DinummaCTh 11.7.8 (355 mss.)
356, Nov. 10–357, Mar. 19In MilanCTh 16.2.13 (357 mss.); 9.16.4 (Dec. 27: year implied to be 357); 12.12.2 (Jan. 15); 9.17.4 (Jan. 15: ‘id.Iun.’ mss.); 9.16.4 (Jan. 25); 15.1.1 (Feb. 2: 320 mss.); 10.20.2 (358 mss.)
357, Apr. 28Enters RomeChr. min. 1.239
357, Apr. 28–May 29In RomeAmmianus 16.10.20 (length of stay); CTh 8.1.5 (May 6); 10.1.2 (May 17: 319 mss.)
357, June 7 or 10At HelvillumCTh 1.5.6 + 7
357, July 5At AriminumCTh 9.16.6 (358 mss.)
357, July 21At RavennaCTh 12.1.40
357Passes through Tridentum on his way to the DanubeAmmianus 16.10.20
357Visits Pannonia and MoesiaZosimus 3.2.2; Julian, Ep. ad Ath. 279
357, Oct.–358, Mar. 3Winters in SirmiumAmmianus 16.10.21; 17.12.1; CTh 8.5.10 (Oct. 27: trasmitted year either 357 or 358); 1.15.3 (Dec. 3: 353 mss.); 7.4.3, 11.30.27 (Dec. 18); 2.21.2 (Dec. 18: 360 mss.); 9.42.4 (357, Jan. 4); CJ 3.26.8
358, Apr.Invades the territory of the Sarmatae LimigantesAmmianus 17.12.4–6
358Returns in triumph to SirmiumAmmianus 17.13.33
358, June 21–23In SirmiumCTh 12.1.44 + 45 (June 21); 8.13.4, 11.36.13 (June 23)
358, June 27At MursaCTh 12.1.46
358, c. Oct.–359, c. Mar.Winters in SirmiumAmmianus 18.4.1; 19.11.1; CTh 2.21.1 (Dec. 19)
359, springBegins a campaign against the SarmataeAmmianus 19.11.2
359In the province of ValeriaAmmianus 19.11.4
359Defeats the Limigantes near AcimincumAmmianus 19.11.5–16
359Returns to SirmiumAmmianus 19.11.17
359, May 22At SirmiumCTh 6.4.14 + 15; Athanasius, Syn. 8.3; Socrates, HE 2.37.18
359, May 28At SirmiumCTh 1.7.1
359, June 18At SingidunumCTh 11.30.28
359, ?At Adrianople?Athanasius, Syn. 55.2/3 (implying intent to visit)
359, autumnGoes to Constantinople and winters thereAmmianus 19.11.17; 20.8.1; Socrates, HE 2.41.1; Sozomenus, HE 4.23.3, cf. Chr. min. 1.239 (implying Constantius’ presence in the city before Dec. 11)
359, Dec.–360, Mar.In ConstantinopleSozomenus, HE 4.23.4–7 (late Dec.–Jan. 1); Hilary, Ad Const. 2.2 (CSEL 65.198.9/10, cf. Jerome, De vir. ill. 100; CTh 4.13.4; 11.36.10 (Jan. 18: 356 and 354 mss.); 11.24.1 (Feb. 4); 14.1.1 (Feb. 24: 357 mss.); 7.4.5 (Mar. 14: 359 mss.)
360, March?At Caesaraea in Cappadocia when he receives news that Julian has been proclaimed AugustusAmmianus 20.9.1
360Travels via Melitene, Lcotena, and Samosata to EdessaAmmianus 20.11.4
360, after Sept. 21Leaves EdessaAmmianus 20.11.4
360Visits AmidaAmmianus 20.11.4/5
360Besieges BezabdeAmmianus 20.11.6–31
360, Dec. 17At HierapolisCTh 7.4.6 (May 17 mss.)
360, late Dec.–361, c. Mar.Winters in AntiochAmmianus 20.11.32; CTh 16.2.16 (Feb. 14); Socrates, HE 2.45.10
361, May 3At GephyraCTh 1.6.1, 28.1; 6.4.12, 13; 7.8.1; 11.1.7, 15.1, 23.1; 12.1.48; 13.1.3; 15.1.7 (all extracts from the same law)
361, May 29At DolicheCTh 7.4.4 (358 mss.: place of issue trassmitted as Doridae)
361Crosses the Euphrates at Capersana, goes to Edessa, and later returns to Hierapolis (or possibly Nicopolis)Ammianus 21.7.8, 13.8
361, autumnReturns briefly to AntiochAmmianus 21.15.1/2
361, Oct.At HippocephalusAmmianus 21.15.2
361Falls ill at TarsusAmmianus 21.15.2
361, Nov. 3Dies at Mopsucrenae in CiliciaJerome, Chronicle 242; Ammianus 21.15.3 (date emended from Oct. 5); Chr. min. 1.240; Socrates, HE 2.47.4; 3.1.1

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