The Battle of Cos Omac was fought in , or as late as 255 BC, between an Antigonid fleet and a

Ptolemaic Ptolemaic is the adjective formed from the name Ptolemy, and may refer to: Pertaining to the Ptolemaic dynasty *Ptolemaic dynasty, the Macedonian Greek dynasty that ruled Egypt founded in 305 BC by Ptolemy I Soter *Ptolemaic Kingdom Pertaining t ...

fleet.

Antigonus II Gonatas Antigonus II Gonatas (, ; – 239 BC) was a Macedonian Greek ruler who solidified the position of the Antigonid dynasty in Macedon after a long period defined by anarchy and chaos and acquired fame for his victory over the Gauls who had inv ...

led his forces to victory, possibly over Patroclus, admiral of

Ptolemy II Ptolemy II Philadelphus (, ''Ptolemaîos Philádelphos'', "Ptolemy, sibling-lover"; 309 – 28 January 246 BC) was the pharaoh of Ptolemaic Egypt from 284 to 246 BC. He was the son of Ptolemy I, the Macedonian Greek general of Alexander the G ...

. It has been widely assumed that the battle severely damaged Ptolemaic control of the Aegean, but this has been contested After the battle, Antigonus dedicated his flagship to

Apollo Apollo is one of the Twelve Olympians, Olympian deities in Ancient Greek religion, ancient Greek and Ancient Roman religion, Roman religion and Greek mythology, Greek and Roman mythology. Apollo has been recognized as a god of archery, mu ...

. The date of the battle is uncertain, although it must fall within the period 262–256 BC. Hammond dates it as late as 255 BC, but it is now increasingly placed in 261 BC. The Battle of Cos Omac is proposed by modern scholars as one of three possible naval battles—along with the

Battle of Amorgos The Battle of Amorgos was one of the naval battles of the Lamian War (323–322 BC), fought between the Macedonian navy under Cleitus the White and the Athenian navy under Euetion. Although few details are known, it was a clear Athenian defea ...

(322 BC) and the

Battle of Salamis (306 BC) The naval Battle of Salamis in 306 BC took place off Salamis, Cyprus between the fleets of Ptolemy I of Egypt and Antigonus I Monophthalmus, two of the Diadochi, the generals who, after the death of Alexander the Great, fought each other for ...

—that provided the occasion for the erection of the statue of the Nike of Samothrace. Oliver, James Henry. Demokratia, the gods, and the free world: Morals and law in ancient Greece. Ayer Publishing, 1979. . p. 149.

References

Cos Cos Cos Cos Cos Ancient Kos Ancient Aegean Sea 3rd century BC in Greece Cos Cos {{AncientGreece-battle-stub