Demetrias

Demetrias (Ancient Greek: Δημητριάς) was an ancient Greek city in Magnesia (east central Greece), near the modern city of Volos. It was founded by Demetrius Poliorcetes, and became the favourite residence of the kings of Macedon.

In 196 B.C., the Romans, victorious in the battle of Cynoscephalae over Philip V of Macedon in the previous year, took possession of Demetrias, but four years later the Aetolian League captured it by surprise. The Aetolians allied themselves with Antiochus III of the Seleucid Empire in the Roman–Syrian War. This ended in the defeat of Antiochus. The Romans then returned Demetrias to Philip, who had been their ally in this war. It remained a Macedonian possession until the battle of Pydna in 169 B.C.

Under Roman Emperor Constantine the Great (ruled 306–337) it became a Christian episcopal see and is now a titular see of the Catholic Church.

According to Procopius (De Aedificiis, 4.3.5), Demetrias was rebuilt by Justinian I (r. 527–565), but other evidence points to the possibility that "ancient urban life may have already come to an end by the beginning of the 6th century" (T.E. Gregory). Its territory was settled by the Slavic tribe of the Belegezitai in the 7th/8th centuries, raided and sacked by the Saracens in 901/2, and by rebels during the Uprising of Peter Delyan in 1040.

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