The Battle of Tzirallum was part of the civil wars of the Tetrarchy fought on 30 April 313 between the Roman armies of emperors Licinius and Maximinus. The battle location was on the "Campus Serenus" at Tzirallum, identified as the modern-day town of Çorlu, in Tekirdağ Province, in the Turkish region of Eastern Thrace. Sources put the battle between 18 and 36 Roman miles from Heraclea Perinthus, the modern-day town of Marmara Ereğlisi.
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Battle of Tzirallum in the context of Maximinus Daza
Galerius Valerius Maximinus, born as Daza (Ancient Greek: Μαξιμίνος; 20 November c. 270 – c. July 313), was Roman emperor from 310 to 313. In 305 his uncle Galerius admitted him to the Tetrarchy with the rank of caesar, a controversial appointment which helped start the civil wars of the Tetrarchy in the following year. Maximinus Daza claimed the title of augustus in 310, sharing and often contesting power with Licinius. A committed pagan, he engaged in one of the last persecutions of Christians, and was the last person to hold the title of Pharaoh of Egypt. In 313 Maximinus Daza openly turned against Licinius and was routed at the Battle of Tzirallum. He died during the subsequent retreat, shortly after publishing an edict of tolerance restoring the Christians' freedoms.
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