Pellene was the easternmost ancient Greek

Ancient Greece

Ancient Greece is a civilization belonging to a period of Greek history that lasted from the Archaic period of the 8th to 6th centuries BC to the end of antiquity. Immediately following this period was the beginning of the Early Middle Ages and the Byzantine era. Included in Ancient Greece is the...

 city-state (polis

Polis

Polis , plural poleis , literally means city in Greek. It could also mean citizenship and body of citizens. In modern historiography "polis" is normally used to indicate the ancient Greek city-states, like Classical Athens and its contemporaries, so polis is often translated as "city-state."The...

) in Achaea

Achaea (ancient region)

Geographically, Achaea was the northernmost region of the Peloponnese, occupying the coastal strip north of Arcadia. Its approximate boundaries were to the south the mountain range of Erymanthus, to the south-east the range of Cyllene, to the east Sicyon, and to the west the Larissos river...

. The ruins are southwest of Xylokastro

Xylokastro

Xylokastro is a town and a former municipality in Corinthia, Peloponnese, Greece. Since the 2011 local government reform it is part of the municipality Xylokastro-Evrostina, of which it is a municipal unit. It is 40 km W of Corinth via Greek National Road 8A/E65...

. The city sided with Sparta

Sparta

Sparta or Lacedaemon, was a prominent city-state in ancient Greece, situated on the banks of the River Eurotas in Laconia, in south-eastern Peloponnese. It emerged as a political entity around the 10th century BC, when the invading Dorians subjugated the local, non-Dorian population. From c...

 throughout the Peloponnesian War

Peloponnesian War

The Peloponnesian War, 431 to 404 BC, was an ancient Greek war fought by Athens and its empire against the Peloponnesian League led by Sparta. Historians have traditionally divided the war into three phases...

. It was a member of the Achaean League until that League was dissolved by Alexander the Great. In the fourth century it was ruled for some time by a tyrant. Some time after the fall of Antigonus Monophthalmus at the Battle of Ipsus

Battle of Ipsus

The Battle of Ipsus was fought between some of the Diadochi in 301 BC near the village of that name in Phrygia...

 in 301 BC, Pellene was garrisoned by the Aetolian League

Aetolian League

The Aetolian League was a confederation of tribal communities and cities in ancient Greece centered on Aetolia in central Greece. It was established, probably during the early Hellenistic era, in opposition to Macedon and the Achaean League. Two annual meetings were held in Thermika and Panaetolika...

 until this garrison was expelled by Aratus of Sicyon

Aratus of Sicyon

Aratus was a statesman of the ancient Greek city-state of Sicyon and a leader of the Achaean League. He deposed the Sicyonian tyrant Nicocles in 251 BC. Aratus was an advocate of Greek unity and brought Sicyon into the Achaean League, which he led to its maximum extent...

 and the Achaeans in the 240s BC. Then Pellene joined the revived Achaean League

Achaean League

The Achaean League was a Hellenistic era confederation of Greek city states on the northern and central Peloponnese, which existed between 280 BC and 146 BC...

 until the League was incorporated into the Roman Empire in 146 BC

146 BC

Year 146 BC was a year of the pre-Julian Roman calendar. At the time it was known as the Year of the Consulship of Lentulus and Achaicus...

.