Calas held a command in the army which
Philip II sent into
Anatolia under
Parmenion and
Attalus, 336 BC, to further his cause among the Greek cities there. In 335 BC Calas was defeated in a battle in the
Troad by
Memnon of Rhodes, but took refuge in Rhaeteum.[1]
Campaigns of Alexander the Great
At the
Battle of the Granicus in 334 BC he led the
Thessalian cavalry in
Alexander's army, and was appointed by him in the same year to the
satrapy of the Lesser or
Hellespontine Phrygia, to which
Paphlagonia was soon after added.[2] Excluding a failed attempt to conquer
Bithynia[3], we do not hear of Calas: it would seem, however, that he died before the treason and flight of his father in 325, as we know from
Arrian that
Demarchus succeeded him in the satrapy of the
Hellespontine Phrygia during Alexander's life-time.