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) and appendix 9 of Athanasius and Constantius: Theology and Politics in the Constantinian Empire (Cambridge: Harvard University Press, 1993) both by T.D. Barnes. In his charts, Barnes compiled all the movements and primary residences of each of the emperors of the tetrarchy from 284–361. The tables below have combined and synthesized all his charts for the individual emperors into multiple master charts sorted by year with preference given to Athanasius and Constantius in the few places where the charts differ.To further improve readability, the sources were omitted from the master charts. They can be found, along with reproductions of the original individual charts, in links below.

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).

Attested Movements

284–289
Year Month Diocletian Maximian
284 November 20 – Proclaimed emperor at Nicomedia
285 Spring Campaign against Carinus, ending in a battle near Viminacium
Summer Visit to Italy
July 21 – Proclaimed Caesar, probably in Milan
Late Summer Campaign against the Bagaudae
Autumn Campaign against the Sarmatians Repels a German invasion of Gaul
September At Boulogne
November 2 – At Civitas Ionia (otherwise known as Botivo) and Sonista (on the road between Poetovio and Mursa)
286 January Jan. 20–Mar. 3 – At Nicomedia
February 10 – At Milan
March
22 – At Byzantium
May May 31–Aug. 31 – At Tiberias
June 21 – At Mainz
August
October 13 – At Heraclea in Thrace
287 January Negotiates with Persian ambassadors, presumably in Syria; and installs Tiridates as ruler in Armenia


 1 – At Trier (or possibly Cologne or Mainz) Expedition across the Rhine
Fortifies Circesium and reorganizes the Syrian frontier
288 Campaign on the frontier of Raetia, and conference with Maximian Conference with Diocletian
Late Receives Gennoboudes and his Franci, presumably in northwestern Gaul
289 April 21 – At Trier (or possibly Cologne or Mainz) 289 or 290 – Visits Rome
Summer Sarmatian campaign, defense of Dacia
290–294
Year Month Diocletian Maximian Constantius Galerius
290 Early Visits Lugdunum Tours Gaul 289 or 290 – Visits Rome
January 11 – At Sirmium
February 27 – At Adrianople
April 3 – At Byzantium
May 6 – At Antioch
10 – At Emesa
25 – At Laodicea
May/June – Campaign against Sarceni
June
Summer Returns from Syria to Pannonia
July July 1–Dec. 18 – At Sirmium
December 22 – Crosses the Alps
Late Dec. or Jan. – Confers with Maximian in Milan Late Dec. or Jan. – Confers with Diocletian in Milan
291 January
February 18 – At Durocortorum (Reims)
May 13 – At Sirmium
Summer At Trier
December 4 – At Oescus (mss. have Triballis)
293 January Jan. 1–Feb. 26 – At Sirmium Repels invasion of Batavia
February
March 1 – Invests Galerius with the purple, probably at Sirmium 1 – Invests Constantius with the purple, presumably at Milan 1 – Proclaimed Caesar, probably at Milan 1 – Invested with the purple by Diocletian, probably at Sirmium
18 – At Ravenna
April 1 – At Heraclea
2–13 – At Byzantium
15 – At Melantias
Apr. 17–May 1 – At Heraclea
May 2 – At Milan
May 1 – At Tzirallum (Tzurulon), near Heraclea
10–13 – At Adrianople
17 – At Beroea 19 – At Verona
May 25–June 17 – At Philippopolis
June
21–28 – At Serdica
Summer Early – Expels troops of Carausius from northwestern Gaul
July 2–15 – At Philippopolis
August Aug. 8–Sept. 1 – At Viminacium
Autumn Visits Lugdunum
September
Sept. 11–May 1 – At Sirmium
December In Egypt
294 May Expedition to Upper Egypt
3 – Near Sirmium
May 18–Aug. 20 – At Sirmium
August 5 – At Cologne
September 8–12 – At Singidunum
22 – Demesso (mss.): not yet identified
Sept. 26–Oct. 1 – At Viminacium
October 27 – At Rome
5 – At Cuppae
8–10 – At Ratiaria
11 – At Cebrum
13 – At Varianae
17 – At Appiaria
18 – At Transmarisca
21–22 – At Durostorum
25 – Reginassi (mss.): not yet identified
26 – At Marcianopolis
28 – At Anchialos
29 – At Develtus
31 – At Adrianople
November 1–3 – At Burtudizum
5–8 – At Heraclea
9 – At Melantias
10 – At Byzantium
11 – At Pantichium
Nov. 15–Dec. 30 – At Nicomedia
December
295–299
Year Month Diocletian Maximian Constantius Galerius
295 January Visits Italy, passing through Autun on his return to Gaul In Upper Egypt Campaign on the Persian frontier
March 18 – At Nicomedia 21 – At Milan
May 1 – At Damascus
December 21 – At Milan
296 March 31 – At Aquileia Recovery of Britain
Summer Campaign against the Carpi On the Rhine
Autumn Fighting in Spain
Late Goes to Syrian frontier and campaigns against the Persians On campaign against the Persians; defeated between Carrhae and Callinicum
297 Spring Collects a new army from the Danube
March 1 – On campaign in Mauretania 1 – At Trier
Autumn Aut. 297–Spr. 297 – Suppresses revolt in Egypt; long siege of Alexandria
298 March 10 – At Carthage Expedition to Tripolitania Successful campaign against the Persians: attacks through Armenia, marches down the Tigris through Media and Adiabene, advances to Ctesiphon, and returns up the Euphrates
Spring
May Visits Oxyrhynchus and travels up the Nile
June
Summer Reaches Elephantine and negotiates with Nobatae
September Return northward expected at Panoplis
Winter

Negotiates with a Persian envoy in Mesopotamia
299 Goes from Africa to Italy
Enters Rome in triumph		 299 or 300 – Campaign against the Marcomanni
February 5 – At Antioch
Spring Meets Galerius at Nisibis Meets Diocletian at Nisibis
With Diocletian at Antioch
Winter Late – Goes to Mesopotamia
300–305
Year Month Diocletian Maximian Constantius Galerius
300 February Feb. 12–July 4 – At Antioch 300 or 301 – Victory over the Franci 299 or 300 – Campaign against the Marcomanni
301 July Visits Egypt
Late Campaign against the Carpi
302 March 31 – At Alexandria Victory over German invaders in the territory of the Lingones Campaigns against the Carpi and Sarmatians
Autumn At Antioch
Winter Goes to Bithynia for Winter At Nicomedia with Diocletian
303 German Victory near Vindonissa
January Jan. 6–Mar. 12 – At Nicomedia
March 12 – Still at Nicomedia
14 – Leaves Nicomedia
June 8 – At Durostorum
Summer Sum./Aut. – Visits Sirmium
Autumn Campaign against the Carpi
November before Nov. 20–Dec. – At Rome Nov.–Dec. – With Diocletian in Rome
December
20 – Leaves Rome
304 January 1 – At Ravenna
April After Apr. 21 – Leaves Rome
Summer On the Danube; perhaps defeats the Carpi
August Aug. 28–May 1 – At Nicomedia
Winter





 Meets Galerius at an unknown location Late – Victory over German raiders who had crossed the frozen Rhine Meets Maximian at an unknown location
305 Crosses from Boulogne to Britain, and campaigns against the Picts
March Mar.–May – At Nicomedia
May 1 – Resigns the imperial power at Milan
305–309
Year Month Constantius Galerius Severus Maximinus Constantine Licinius
305 March Crosses from Boulogne to Britain, and campaigns against the Picts Mar.–May – At Nicomedia
May 1 – Invested with the purple by Maximian at Milan 1 – Proclaimed Caesar at Nicomedia
May/June – Goes to the East
June
November 5 – At Apollonopolis in the Thebaid
306 July 25 – Dies at York 25 – Proclaimed emperor at York
Autumn Aut. 306 or Early 307 – Campaign against the Franci
November 20 – At Caesarea in Palestine
Winter Campaign against the Sarmatians Confers with Galerius, and prepares to march on Rome
307 Visits Britain
Early Begins his attack from Milan
March 1 – At Beauvais
Spring Advances close to Rome, but is forced to retreat and flees to Ravenna, where he abdicates
Summer Late Sum./Aut. – Invades Italy
Autumn
September Marriage to Fausta and investiture as Augustus by Maximian, presumably at Trier
Winter At Caesarea
308 308 or 309 – Campaign against the Carpi Raids the territory of the Bructeri and builds bridge over the Rhine at Cologne
Spring Spr. or Early Sum. – At Caesarea
Summer
October At Serdica
November 11 – At Carnuntum 11 – Invested as Augustus at Carnuntum
Returns to Serdica
309
310–314
Year Month Galerius Maximinus Constantine Licinius
310 Summer Campaign against the Persians On campaign against the Franci
July Marches south to Massilia on receiving news of Maximian’s usurpation
August At Trier
Late Visits Britain
311 Spring In Syria when he learns of Galerius’ death (which occurred c. May 1) Visits Autun
April Late Apr. or Early May – Dies in the province of Dardania, and is buried at Romulianum on the Danube
May
June 27 – Victory over the Sarmatians
Summer



 Early – Crosses Asia Minor rapidly to Bithynia, and negotiates with Licinius at the Bosporus Negotiates with Maximinus at the Bosporus
Returns to Nicomedia and resides there
July 25 – At Trier
312 January 7 – At Nicomedia Visits Stratonicea in Caria Invasion of Italy and campaign against Maxentius’ forces in northern Italy
July July/Aug. – At Antioch
August
Autumn Campaign against the Armenians
October 28 – Battle of the Milvian Bridge
29 – Enters Rome
Oct. 29–Jan. – In Rome
313 Winter Late Win./Spr. – Crosses Asia Minor from Syria to Bithynia Visit to Britain 313 or 314 – Campaigns on the Persian frontier
January
February In Syria Early – Marries his sister to Licinius at Milan Early – Leaves Carnuntum and travels posthaste to Italy
16 – At Sirmio Marries Constantine’s sister at Milan
March At Milan
Spring Goes to Gaul
April Captures Byzantium 30 – Defeats Maximinus near Adrianople
20 – Advances to Heraclea
30 – Defeated near Adrianople
May 1 – Crosses the Bosporus May 28–June 16 – At Trier Early – Advances to Nicomedia
2 – At Nicomedia
Flees to Cappadocia
June 13 – At Nicomedia
Summer Goes to the lower Rhine Crosses Asia Minor
July Kills himself at Tarsus 1 – At Cologne
August 3 – At Trier
At Trier
Autumn At Antioch
November Nov. 3–June 1 – At Trier
314 June Supervises the building of a fort on the east bank of the Rhine 314 or 315 – Campaigns against the Goths Between 314 and 316 – At Tropaeum Traiani
August 1 – Present at the Council of Arles
Autumn German Campaign
October Oct. 29–Apr. 28, 315 – At Trier
315–319
Year Month Constantine Licinius Crispus
315 April Oct. 29, 314–Apr. 28 – At Trier 314 or 315 – Campaigns against the Goths Between 314 and 316 – At Tropaeum Traiani
June 2 – At Sirmio
July 18 – At Aqua Viva
18 or 21 – Enters Rome
July 21–Sept. 27 – In Rome
September
27 – Leaves Rome
October 19 – At Milan
316 January 11 – At Trier
March 21 – At Cabillunum (Chalon-sur-Saône)
May 6 – At Vienne
August 7 – Presumably at Arles when his son Constantinus was born there
13 – At Arles
September 29 – At Verona Sept./Oct. – At Sirmium
October 8 – At the battle of Cibalae
8 – At Cibalae
9 – At Sirmium
After Oct. 9 – Flees to Dacia and then to Adrianople
December 4 – At Serdica
8 – At Serdica
At Philippi
317 January Fights the battle of the Campus Ardiensis, then advances toward Byzantium Defeated at the battle of the Campus Adriensis and withdraws to Beroea
February Returns to Serdica
March Mar. 1–Apr. 17 – At Serdica 1 – Proclaimed Caesar at Serdica
April
June June 6–Aug. 7 – At Sirmium
August
December 27 – At Thessalonica
318 January 23 – At Sirmium Campaign against the Sarmatians
February 7–9 – At Sirmium
May May 23–July 30 – At Aquileia
June 23 – At Byzantium
July
September 7 – At Milan
October

 12 – At Aquileia
Oct. 24–Apr. 13 – At Sirmium
319 April Campaign against the Franci
July 25 – At Naissus
August 18 – At Serdica
September 29 – At Serdica
November Nov. 1–May 19 – At Serdica
320–324
Year Month Constantine Licinius Crispus Constantinus Constantius
320 May

 Nov. 1–May 19 – At Serdica
May 22–Aug. 10 – At Sirmium
August
December 17–31 – At Serdica
321 January 1 – At Serdica
February 6–27 – At Serdica
March 1 – With Constantine, presumably at Serdica
April 17 – At Sirmium
May 21 – At Viminacium
June June 12–Sept. 14 – At Sirmium
September
322 April 11 – At Sirmium
May May 23–July 20 – At Sirmium
July
December 18 – At Serdica
323 February Feb. 15 or May 18 – At Thessalonica Campaign on the Rhine Takes part in Constantine’s Sarmatian campaign
Spring At Thessalonica when Roman territory is invaded
April 13 – At Byzantium
May
Summer Campaign against the Sarmatians: successively at Campona, Margus, and Bononia
December 25 – At Sirmium
324 January 19 – At Sirmium (or 321 Jan. 19) 1 – At Sirmium
March Mar. 8–Apr. 8 – At Thessalonica
Spring Spr.–Sum. – Prepares and begins the campaign against Licinius from Thessalonica
April
Summer In command of Constantine’s fleet: destroys Licinius’ fleet at the Hellespont and then sails to the Bosporus
July 3 – Battle of Adrianople 3 – Defeated at Adrianople
July–Sept. – Siege of Byzantium July–Sept. – Siege of Byzantium
September 18 – Battle of Chrysopolis
Flees to Chalcedon
19 – Receives the surrender of Licinius at Nicomedia 18 – Retreats to Nicomedia
19 – Abdicates and is then sent to Thessalonica
November 8 – Founds Constantinople and proclaims Constantius Caesar 8 – Proclaimed Caesar at Byzantium
December Visits Antioch
325–329
Year Month Constantine Crispus Constantinus Constantius
325 February 25 – At Nicomedia
March 6 – At Trier
May May 23–Late June – At Nicaea
June
July July 25–Sept. 15 – At Nicomedia
September
17 – At Nassete (between Nicomedia and Chalcedon)
October 13 – At Constantinople
19 – At Aquae
326 February 3 – At Heraclea Remains in the East while Constantine visits Rome Accompanies Constantine to Rome
March 5 – At Heraclea
8 – At Constantinople
April 1–4 – At Aquileia
May Executed at Pola
July 6 – At Milan
July 18 (or 21)–Aug. 3 – In Rome
August
September 25 – At Spoletium
October 23 – At Milan
November 22 – At Aquileia
December 31 – At Sirmium
327 February 27 – At Thessalonica
June 11 – At Constantinople
July 30 – At Nicomedia
December Dec./Jan. – Attends church council at Nicomedia
328 January 328/329 – Campaign on the Rhine
7 – Refounds Drepanum in Bithynia at Helenopolis
March 1 – At Nicomedia
May 18 – At Serdica
July 5 – At Oescus
September 27 – At Trier
December 29 – At Trier
329 March Mar. 9–Apr. 18 – At Sirmium
April
May 13 – At Naissus
May 29–June 19 – At Serdica
June
August 3 – At Heraclea
October 18 – At Bergule
25 – At Heraclea
330–334
Year Month Constantine Constantinus Constantius
330 February 5 – At Serdica Campaign against the Alamanni
22 – At Bessapara
Spring Goes to Constantinople
May 11 – Formal dedication of Constantinople
July July 16–June 30 – At Constantinople
331 June Visits Nicomedia
November 1 – At Constantinople
Nov. 1–Jan. – Tries Athanasius at Psamathia (a suburb of Nicomedia)
332 January
April 12 – At Marcianopolis
20 – Victory over the Goths
July 27 – At Cologne
October Oct. 17–May 5 – At Constantinople
333 May
October Late Oct.–Nov. 11 – At Aquae
November
334 June 17 – At Constantinople At Nicomedia
Campaign against the Sarmatians
July 5 – At Singidunum
August 4 – At Viminacium
25 – At Naissus
335–339
Year Month Constantine Constantinus Constantius Constans
335 March Mar. 22–Oct. 21 – At Constantinople
October
23 – At Nicopolis
November 6 – Returns to Constantinople
7 – In Constantinople
After Nov. 7 – In Constantinople
336

Visits Thessalonica
Campaigns north of the Danube, and recovers part of the lost province of Dacia
July July 25–Apr. 3 – At Constantinople 25 – In Gaul 25 – In Constantinople
337 Spring In Antioch when he learns of Constantine’s last illness Campaign against the Sarmatians
April
Apr. or May – Visits Aquae and Helenopolis
May Travels to Nicomedia, but finds that Constantine is already dead
22 – Dies at Ancyrone, a suburb of Nicomedia After May 22 – Escorts Constantine’s body to Constantinople and supervises the funeral
June 17 – At Trier
July* At Viminacium
August At Viminacium Aug./Sept. – Campaign against the Sarmatae 29 – At Aquileia
September Confers with Constantius and Constans in Pannonia Confers with Constantinus and Constans in Pannonia
Returns to Constantinople
October Returns to Constantinople and convenes a council of bishops
November Returns to Antioch for the winter
338 Spring German Campaign At Caesarea in Cappadocia Restores Arsaces to the throne of Armenia Campaign against the Sarmatae
June 12 – At Viminacium
July 27 – At Sirmium
October 11 – At Antioch
28 – At Emesa
December 27 – At Antioch
339 January 8 – At Trier At Antioch 339 or 340 – At Hierapolis 339–340 – In Dacia when he hears of Constantinus’ invasion of his territory
Visits Rome
April 6 – At Savaria

*Emperor Dalmatius was in Naissus during the summer of 337

340–344
Year Month Constantinus Constantius Constans
340 January 339 or 340 – At Hierapolis Jan. 19–Feb. 2 – At Naissus 339–340 – In Dacia when he hears of Constantinus’ invasion of his territory
Visits Rome
February
April 9 – At Aquileia
June 25 – At Milan
Summer Invades Persian territory
August 12 – At Edessa
September 9 – At Antioch
Winter Late – Invades the territory of Constans and is killed near Aquileia
341 January 6 – Attends the ‘Dedication Council’ at Antioch
February 12 – At Antioch
June 24 – At Lauriacum
Winter Winters in Antioch Campaign against the Franci in Gaul
342
Victory over the Franci and treaty with them
Early Visits Constantinople to expel the bishop Paul and returns at once to Antioch
March Mar. 31–May 11 – In Antioch
May
Summer In Trier
Autumn Interviews Athanasius in Milan
December 4 – At Milan
343 January 25 – At Bononia Crosses to Britain in Winter
February 18 – At Antioch
Spring Soon returns from Britain to Gaul
June June 9–July 4 – In Hierapolis 30 – At Trier
Summer Sum./Aut. – Wins a victory over the Persians Interviews Athanasius in Trier
July
Autumn
October Oct./Nov. – Visits Constantinople
November
344 April At Antioch
Summer Defeats the Persians near Singara
Autumn In Pannonia
345–349
Year Month Constantius Constans
345 Early At Nisibis Receives an embassy from Constantius at Poetovio
April 7 – At Aquileia at Easter, where he interviews Athanasius
May 15 – At Trier
June June 9 or July 11 – At Cologne
Summer At Edessa
July
Autumn Interviews Athanasius in Trier
346 March 21 – At Antioch 5 – At Sirmium
May 23 – At Caesena
September At Antioch
347 March 8 – At Ancyra
Spring Themistius delivers his first imperial panegyric before Constantius at Ancyra
May 11 – At Hierapolis
348 June 17 – At Milan
Summer Engages the Persians in battle near Singara
349 April 1 – At Antioch
May 27 – At Sirmium
Summer At Singara, then Emesa
October 3 – At Constantinople
350–354
Year Month Constantius Constans Gallus
350 January Shortly after Jan. 18 – Killed at Helena in Gaul
Spring At Edessa
Summer In Antioch while Shapur besieges Nisibis
Visits Nisibis after the siege
Autumn Sets out westward from Antioch
Travels from Heraclea to Serdica
December 25 – engineers the abdication of Vetranio at Naissus
351 March 15 – Proclaims Gallus Caesar at Sirmium 15 – Proclaimed Caesar at Sirmium
May 7 – Reaches Antioch
Campaign in Mesopotamia
Summer Sum. and Aut. – In Sirmium before and during the campaign against Magnentius
Autumn
October Present at the Council of Sirmium which deposed Photinus
352 February 26 – At Sirmium
May 12 – At Sirmium
Summer Campaign against the Sarmatae Suppresses a Jewish rebellion in Galilee

Late Sum.–Spr. – At Antioch
September Enters Italy
November 3 – At Milan
353 March Visits Hierapolis
Spring Spr.–Sum. – In Milan
April Apr.–Aug. – At Antioch
Summer
August
September 6 – At Lugdunum 1 – Leaves Antioch
14–30 – At Nicomedia
Stripped of his imperial rank at Poetovio
October Oct.–Spr. – Winters in Arles
Tried and executed near Pola
354 Spring
At Valentia
Crosses the Rhine at Rauracum
Autumn
Aut.–Spr. 355 – Winters in Milan
355–359
Year Month Constantius Julian
355 Spring Aut. 354–Spr. – Winters in Milan
June Conducts Expedition into Raetia
Goes to winter quarters in Milan
July July 6–July 5 – In Milan
November 6 – Proclaims Julian Caesar at Milan 6 – Proclaimed Caesar at Milan
6–30 – At Milan
December 1 – Escorts Julian out of the city, then returns to Milan 1 – Leaves Milan
Travels via Turin to Vienne

Dec.–Spr. – At Vienne
356 Spring
April Apr./May – Present at the Council of Baeterrae
May
June


 24 – reaches Autun
Passes through Auxerre
Advances via Troyes, Rheims, Decem Pagi, Brotomagus
Summer Sum.–Aut. – Campaign against the Alamanni on the Upper Rhine
July
25 – At Messadensis
August
Recaptures Cologne
Visits Trier
September 2 – At Dinumma
November Nov. 10–Mar. 19 – In Milan
Winter Winters at Sens
357
March
Spring Goes to Rheims
Marches toward Strasbourg and wins a vitory over the Alamanni
Returns to Tres Tabernae
Goes to Mainz
Conducts raid across the Rhine
April 28 – Enters Rome
Apr. 28–May 29 – In Rome
May
June 7 or 10 – At Helvillum
July 5 – At Ariminum
21 – At Ravenna
Passes through Tridentum on his way to the Danube
Visits Pannonia and Moesia
October
Oct.–Mar. 3 – Winters in Sirmium
December Dec.–Jan. – For 54 days besieges barbarians who had fortified a town on the Meuse
358 January
Jan.–July – Winters in Paris
March
April Invades the territory of the Sarmatae Limigantes
Returns in triumph to Sirmium
June
21–23 – In Sirmium
27 – At Mursa
July
July–Aut. – Campaigns against the Salian Franci in Toxandria
Autumn
October Oct.–Mar. – Winters in Sirmium
359 January

 At Adrianople 1 – In winter-quarters at Paris
Strengthens the Rhine frontier from Castra Herculis to Bingen
Crosses the Rhine from Mainz and conducts a raid into German territory
March
Spring Begins a campaign against the Sarmatae in the province of Valeria
Defeats the Limigantes near Acimincum
Returns to Sirmium
May 22 – At Sirmium
28 – At Sirmium
June 18 – At Singidunum
Autumn Goes to Constantinople and winters there
December Dec.–Mar. 360 – In Constantinople
360–361
Year Month Constantius Julian
360 January Dec. 359–Mar. – In Constantinople 1 – In winter-quarters at Paris
February Proclaimed Augustus at Paris
March
At Caesarea in Cappadocia when he receives news that Julian has been proclaimed Augustus
Travels via Melitene, Lacotena, and Samosata to Edessa
Summer Crosses the Rhine at Tricesima and attacks the Franci Attuarii
Autumn Marches up the left bank of the Rhine to Rauracum, then via Besançon to Vienne
September
After Sept. 21 – Leaves Edessa
Visits Amida
Besieges Bezabde
November Nov. 6–Mar. – Winters at Vienne
December
At Hierapolis
Late Dec.–Mar. – Winters in Antioch
361 March
Spring Attacks Germans, crosses the Rhine, and goes to Rauracum
Leaves Rauracum, advances up the Rhine, then down the Danube
May 3 – At Gephyra
29 – At Doliche
Crosses the Euphrates at Capersana, goes to Edessa, and later returns to Hierapolis (or possibly Nicopolis)
July Mid-July – via Sirmium as far as the Pass of Succi
Returns to Naissus
At Naissus
Autumn

Returns briefly to Antioch
October At Hippocephalus
Falls ill at Tarsus
November 3 – Dies at Mosucrenae in Cilicia After receiving news of the death of Constantius, leaves Naissus and travels via Philippopolis and Heraclea/Perinthus to Constantinople
December 11 – Enters Constantinople

Movements of Individual Emperors

Constans Chart

Constantine Chart

Constantinus Chart

Constantius I Chart

Constantius II Chart

Crispus Chart

Dalmatius Chart

Diocletian Chart

Galerius Chart

Gallus Chart

Julian Chart

Licinius Chart

Maximian Chart

Maximinus Chart

Severus Chart

Principal Residences

285–289
Year Diocletian Maximian
285 285–296 – Sirmium and Nicomedia On campaign
286
286–293 – Trier
289
290–299
Year Diocletian Maximian Constantius Galerius
290 285–296 – Sirmium and Nicomedia 286–293 – Trier
293 293–306 – Trier Antioch
Milan and Aquileia
296
In Syria and Egypt On campaign and at Carthage On campaign
299
299–302 – Antioch 299–305 – Milan and Aquileia 299–303 – Thessalonica
300–309
Year Diocletian Maximian Constantius Galerius Severus Maximinus Constantine Licinius
300 299–302 – Antioch 299–305 – Milan and Aquileia 293–306 – Trier 299–303 – Thessalonica
302
Nicomedia
303
305 Milan Antioch
306 306–316 – Trier, and perhaps Arles
Caesarea
307
308 308–316 – Sirmium and perhaps Naissus
309 309–311 – Antioch
310–319
Year Maximinus Constantine Licinius Crispus Constantinus
310 309–311 – Antioch 306–316 – Trier, and perhaps Arles 308–316 – Sirmium and perhaps Naissus
311
Nicomedia
312
Antioch
313
316
On Campaign On Campaign
317 With Constantine 317–328 – With Constantine
317–324 – Sirmium, Serdica, and perhaps Thessalonica 317–324 – Nicomedia
318
318–323 – Trier
319
320–329
Year Constantine Licinius Crispus Constantinus Constantius
320 317–324 – Sirmium, Serdica, and perhaps Thessalonica 317–324 – Nicomedia 318–323 – Trier 317–328 – With Constantine
323
With Constantine and on campaign
324

 324–330 – With Constantine
324–330 – Nicomedia Trier
326
328
328–340 – Trier
329
330–339
Year Constantine Constantinus Constantius Constants Dalmatius
330


 324–330 – Nicomedia 328–340 – Trier 324–330 – With Constantine
Constantinople With Constantine
333 With Constantine
335 Naissus
335–350 – Antioch Milan
337
337–340 – Naissus
339
340–349
Year Constantius Constans
340

 337–350 – Antioch for the winter, with summers on campaign in Mesopotamia 337–340 – Naissus
340–350 – Trier, Milan, and Sirmium
349
350–359
Year Constantius Constans Gallus Julian
350 337–350 – Antioch for the winter, with summers on campaign in Mesopotamia 340–350 – Trier, Milan, and Sirmium
351 Sirmium and Milan Antioch
354
355 Win. – Vienne
356
Win. – Sens
357
358 Jan. 358–360 – Paris
359
360–361
Year Constantius Julian
360

 Antioch Jan. 358–360 – Paris
Win. – Vienne
361

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Last update 08/14/2025

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