Philip III Arrhidaeus (; c. 359 BC – 25 December, 317 BC) reigned as king of
Macedonia from after 11 June 323 BC until his death. He was a son of King
Philip II of Macedonia by Philinna of
Larissa, and thus an elder half-brother of
Alexander the Great. Named Arrhidaeus at birth, he assumed the name Philip when he ascended to the throne.