The Battle of Byzantium (Byzantion) was a 317 BC engagement between the generals Antigonus Monopthalmus and Cleitus the White, during the

Second War of the Diadochi The Second War of the Diadochi was the conflict between the coalition of Polyperchon (as Regent of the Empire), Olympias and Eumenes and the coalition of Cassander, Antigonus, Ptolemy and Lysimachus following the death of Cassander's father, Anti ...

. Fought over the course of two days, near

Byzantium Byzantium () or Byzantion () was an ancient Greek city in classical antiquity that became known as Constantinople in late antiquity and Istanbul today. The Greek name ''Byzantion'' and its Latinization ''Byzantium'' continued to be used as a n ...

at the

Hellespont The Dardanelles ( ; ; ), also known as the Strait of Gallipoli (after the Gallipoli peninsula) and in classical antiquity as the Hellespont ( ; ), is a narrow, natural strait and internationally significant waterway in northwestern Turkey t ...

, it resulted in a stunning Antigonid victory.

Background

After the death of

Alexander the Great Alexander III of Macedon (; 20/21 July 356 BC – 10/11 June 323 BC), most commonly known as Alexander the Great, was a king of the Ancient Greece, ancient Greek kingdom of Macedonia (ancient kingdom), Macedon. He succeeded his father Philip ...

in 323 BC, his generals waged the

Wars of the Diadochi The Wars of the Diadochi (, Romanization of Greek, romanized: ', ''War of the Crown Princes'') or Wars of Alexander's Successors were a series of conflicts fought between the generals of Alexander the Great, known as the Diadochi, over who would ...

, with each general attempting to claim a portion of Alexander's vast empire. One of the most talented successor generals (Diadochi) was Antigonus Monophthalmus, so called because of an eye he lost in a siege. The

First War of the Diadochi The Wars of the Diadochi (, romanized: ', ''War of the Crown Princes'') or Wars of Alexander's Successors were a series of conflicts fought between the generals of Alexander the Great, known as the Diadochi, over who would rule his empire followi ...

ended in 321 BC with the Partition of Triparadisus;

Antipater Antipater (; ; 400 BC319 BC) was a Macedonian general, regent and statesman under the successive kingships of Philip II of Macedon and his son, Alexander the Great. In the wake of the collapse of the Argead house, his son Cassander ...

became the new regent of the empire and made Antigonus

strategos ''Strategos'' (), also known by its Linguistic Latinisation, Latinized form ''strategus'', is a Greek language, Greek term to mean 'military General officer, general'. In the Hellenistic world and in the Byzantine Empire, the term was also use ...

of Asia, charged with hunting down and defeating the remnants of the Perdiccan faction. Antigonus led the Royal Army, reinforced with more reliable troops from Antipater's European army, against their enemies in

Asia Minor Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean ...

. In 319 BC he went to

Cappadocia Cappadocia (; , from ) is a historical region in Central Anatolia region, Turkey. It is largely in the provinces of Nevşehir, Kayseri, Aksaray, Kırşehir, Sivas and Niğde. Today, the touristic Cappadocia Region is located in Nevşehir ...

and won the Battle of Orkynia against

Eumenes Eumenes (; ; ) was a Ancient Greece, Greek general, satrap, and Diadoch, Successor of Alexander the Great. He participated in the Wars of Alexander the Great, serving as Alexander's personal secretary and later on as a battlefield commander. Eume ...

, who escaped to the fortress of Nora. Leaving a subordinate to besiege Nora, Antigonus defeated the remaining Perdiccans at the Battle of Cretopolis. In the same year, Antipater died of old age and left the regency to

Polyperchon Polyperchon (sometimes written Polysperchon; ; b. between 390–380 BC – d. after 304 BC,Heckel, W., 'The Marshals of Alexander's Empire' (1992), p. 204 possibly into 3rd century BC),Billows, R., 'Antigonos the One-Eyed and the Creation of the Hel ...

, whose authority Antigonus refused to accept. A coalition between Antigonus,

Cassander Cassander (; ; 355 BC – 297 BC) was king of the Ancient Greek kingdom of Macedonia from 305 BC until 297 BC, and '' de facto'' ruler of southern Greece from 317 BC until his death. A son of Antipater and a contemporary of Alexander the ...

Ptolemy Claudius Ptolemy (; , ; ; – 160s/170s AD) was a Greco-Roman mathematician, astronomer, astrologer, geographer, and music theorist who wrote about a dozen scientific treatises, three of which were important to later Byzantine science, Byzant ...

and

Lysimachus Lysimachus (; Greek language, Greek: Λυσίμαχος, ''Lysimachos''; c. 360 BC – 281 BC) was a Thessaly, Thessalian officer and Diadochi, successor of Alexander the Great, who in 306 BC, became king of Thrace, Anatolia, Asia Minor and Mace ...

formed against the coalition of the new regent. In 318 BC, Antigonus confronted Cleitus the White,

satrap A satrap () was a governor of the provinces of the ancient Median kingdom, Median and Achaemenid Empire, Persian (Achaemenid) Empires and in several of their successors, such as in the Sasanian Empire and the Hellenistic period, Hellenistic empi ...

Lydia Lydia (; ) was an Iron Age Monarchy, kingdom situated in western Anatolia, in modern-day Turkey. Later, it became an important province of the Achaemenid Empire and then the Roman Empire. Its capital was Sardis. At some point before 800 BC, ...

, and drove him out of the territory. Cleitus fled to Polyperchon, who equipped him with a large fleet and sent him to take command of the Hellespont at the beginning of the summer of 317 BC.

Diodorus Siculus Diodorus Siculus or Diodorus of Sicily (; 1st century BC) was an ancient Greece, ancient Greek historian from Sicily. He is known for writing the monumental Universal history (genre), universal history ''Bibliotheca historica'', in forty ...

, ''

Bibliotheca Historica ''Bibliotheca historica'' (, ) is a work of Universal history (genre), universal history by Diodorus Siculus. It consisted of forty books, which were divided into three sections. The first six books are geographical in theme, and describe the h ...

'' XVIII 72, 2–3.

Prelude

Antigonus had spent the autumn and winter of 318 BC in western Asia Minor consolidating his position and gathering a fleet. He now sent Nicanor with a fleet of 100–130 ships to do battle against Cleitus in the Hellespont while he himself marched there with an army. Cleitus was in the Hellespont with a slightly larger fleet.

Battles

The two fleets met in battle near Byzantium, and Cleitus won a victory in which some 70 of Nicanor's ships were captured, sunk or disabled. The remaining 60 ships escaped to

Chalcedon Chalcedon (; ; sometimes transliterated as ) was an ancient maritime town of Bithynia, in Asia Minor, Turkey. It was located almost directly opposite Byzantium, south of Scutari (modern Üsküdar) and it is now a district of the city of Ist ...

, where they were joined by Antigonus and his army. Antigonus ordered these ships to be readied for renewed action, assigning his strongest and most loyal soldiers to them as marines. Meanwhile, the Byzantines transported his archers, slingers and peltasts to the European shore, where Cleitus's victorious forces were encamped. At dawn the next day Antigonus launched an assault by land and sea; caught completely by surprise, Cleitus's entire force was captured or killed.

, ''

'' XVIII 72, 3–4.

Aftermath

Cleitus managed to escape with a single ship, but he was soon forced to run it aground and tried to reach

Macedon Macedonia ( ; , ), also called Macedon ( ), was an ancient kingdom on the periphery of Archaic and Classical Greece, which later became the dominant state of Hellenistic Greece. The kingdom was founded and initially ruled by the royal ...

by land. He was intercepted and executed by some soldiers working for Lysimachus . This brilliant stroke greatly enhanced Antigonus's reputation for military genius (he had won three stunning victories in a row) and freed him from further worry of Polyperchon interfering in Asia. He at once set out to deal with Eumenes who was causing trouble in

Cilicia Cilicia () is a geographical region in southern Anatolia, extending inland from the northeastern coasts of the Mediterranean Sea. Cilicia has a population ranging over six million, concentrated mostly at the Cilician plain (). The region inclu ...

Syria Syria, officially the Syrian Arab Republic, is a country in West Asia located in the Eastern Mediterranean and the Levant. It borders the Mediterranean Sea to the west, Turkey to Syria–Turkey border, the north, Iraq to Iraq–Syria border, t ...

and

Phoenicia Phoenicians were an Ancient Semitic-speaking peoples, ancient Semitic group of people who lived in the Phoenician city-states along a coastal strip in the Levant region of the eastern Mediterranean, primarily modern Lebanon and the Syria, Syrian ...

References

{{Reflist 317 BC

Byzantium 317 BC Antigonus I Monophthalmus