Europe, 10 Jun 311: Collapse of the Tetrarchy
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Political map of Europe & the Mediterranean on 10 Jun 311 (Diocletian and the Tetrarchy: Collapse of the Tetrarchy), showing the following events: End of Domitius Alexander; Arab incursions of Shapur II; Kingdom of All Arabs; Edict of Serdica; Fifth Tetrarchy; Reign of Maximinus Daza.

R o m a n E m p i r e(Maximinus Daza, Constantine I, Licinius)

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

Sasanian
Persian Empire(Shapur II; Ifra Hormizd)

( Maximinus Daza )

Constantine(semi-indep)

Licinius(semi-indep)

Pannoniae(Lic.)

Tervingi(R. client)

Kushano-
Sasanian
Kingdom

Britanniae(Const.)

Hispaniae(Const.)

Pontica(R. dioc.)

Africa(Mxt. ctrl)

Viennensis(Const.)

Galliae(Const.)

Asiana(R. dioc.)

Oriens(R. dioc.)

Armenia(R. client)

Bosporan
Kingdom(R. client)

Quadi(R. client)

S a r m a t i a n s

Colchis(R. client)

Kingdom of
All Arabs

Baquates(R. client)

Iyad(confed. KOAA)

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

310Maxentius retakes Africa

310?–325Arab tribes raid
Persian Empire

?? 310?–Dec 328Lakhmids rule
Kingdom of All Arabs

Apr 311Galerius ends
persecution
of Christians

May 311Galerius dies;
succeeded by
Maximinus Daza

May 311–Oct 312Maximinus Daza presides
over Roman Empire;
real power only in east

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