Licinius I
Cyzicus 308-324 CE
Æ Follis 21mm, 4,69g
308 CE
November 11

Galerius calls a council to discuss the disruptive western provinces. Diocletian and Maximian attend. Maximian is forced to abdicate and Constantine the Great is demoted to Caesar under the new Augustus Licinius.

311 CE
December

Constantine the Great forges an alliance with Licinius, giving him his sister Constantia in marriage.

313 CE
February

Constantine the Great and Licinius meet in Milan to cement their marriage alliance. The two emperors sign the Edict of Milan, promising religious tolerance.

316 CE

Constantine the Great defeats Licinius at the Battle of Cibalae.

317 CE

Constantine the Great and Licinius fight at the Battle of Mardia, where both sides take heavy losses. They agree to promote Crispus, Constantine II, and Licinius II to Caesars.

320 CE

Licinius goes against the Edict of Milan and begins removing Christians from office.

323 CE

The fleet of Constantine I takes moorage at Elaios against Licinius.

324 CE
July 3

Licinius is soundly defeated by Constantine the Great at the Battle of Adrianople.

324 CE
July

Crispus, the son of Constantine the Great, achieves a huge naval victory over Licinius at the Battle of the Hellespont.

324 CE
September 18

Constantine the Great defeats Licinius at the Battle of Chrysopolis. Licinius surrenders and are sent to live as private citizens.

325 CE

Licinius is accused of a plot to kill Constantine the Great and is executed.