Europe, 28 Oct 306: Constantine and Maxentius
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Political map of Europe & the Mediterranean on 28 Oct 306 (Diocletian and the Tetrarchy: Constantine and Maxentius), showing the following events: Constantius I’s Pictish Campaign; Sarmatian War of 305–7; Accession of Constantine I; Ascaric and Merogais; Third Tetrarchy; Limesfall II; Maxentius’ Coup.

R o m a n E m p i r e(Galerius & Valerius Severus)

F i n n o - U g r i c P e o p l e s

Sasanian
Persian Empire(Hormizd II)

( Constantine )

( Maximinus Daza )

Pannoniae(R. dioc.)

Tervingi(R. client)

Kushano-
Sasanian
Kingdom

Thraciae(R. dioc.)

Pontica(R. dioc.)

Africa(R. dioc.)

Viennensis(R. dioc.)

Galliae(R. dioc.)

Asiana(R. dioc.)

Oriens(R. dioc.)

Moesiae(R. dioc.)

Armenia(R. client)

Hispaniae(R. dioc.)

Britanniae(R. dioc.)

Italia(R. dioc.)

Bosporan
Kingdom(R. client)

S a r m a t i a n s

Quadi(R. client)

Colchis(R. client)

Lakhmid K.(Per. vas.)

Baquates(R. client)

Tanukhid K.(R. client)

Wielbark
Culture

Iberia(R. client)

Albania(R. client)

Marco-
manni(R. client)

Alemanni(R. client)

Votadini(R. client)

Przeworsk
culture

Rhysaddir?(Hisp.)

Rutubis?(Hisp.)

Aug. Treverorum

?? 305–Jan 306Constantius defeats
Picts north of
Hadrian’s Wall

305–307Romans defeat
Sarmatians

25 Jul 306Constantine succeeds
Constantius as emperor

306–307Constantine defeats
Frankish incursion into Gaul

306Galerius recognizes
Severus as Augustus and
Constantine as Caesar

306?Final Roman
abandonment of
Agri Decumates

28 Oct 306Maximian’s son
Maxentius seizes
power in Rome

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