Cos

Cos was one of the Dodecanese islands, west of the Carian city of Cnidus, Asia Minor. The people of Cos (Coans) were originally called the Merops after their king, Meropes.

Heracles' ships were driven by a storm from Hera to the island of Cos. The Coan king, Eurypylus, son of Pos and Astypalaea, thought they were pirates and attacked Heracles and his men. During the fighting, Heracles managed to kill Eurypylus, but was gravely wounded by Chalcodon. Zeus saved his son's life by spiriting Heracles away.

Pheidippus and Antiphus brought 30 ships from the islands of Cos and Nisyrus to fight in the war against Troy.