Philip was son of Antipater

Antipater

Antipater was a Macedonian general and a supporter of kings Philip II of Macedon and Alexander the Great. In 320 BC, he became Regent of all of Alexander's Empire. Antipater was one of the sons of a Macedonian nobleman called Iollas or Iolaus and his family were distant collateral relatives to the...

, the regent of Macedon

Macedon

Macedonia or Macedon was an ancient kingdom, centered in the northeastern part of the Greek peninsula, bordered by Epirus to the west, Paeonia to the north, the region of Thrace to the east and Thessaly to the south....

ia, and brother of Cassander

Cassander

Cassander , King of Macedonia , was a son of Antipater, and founder of the Antipatrid dynasty...

, by whom he was sent in 313 BC

313 BC

Year 313 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Cursor and Brutus...

, with an army to invade Aetolia

Aetolia

Aetolia is a mountainous region of Greece on the north coast of the Gulf of Corinth, forming the eastern part of the modern prefecture of Aetolia-Acarnania.-Geography:...

. But on his arrival in Acarnania

Acarnania

Acarnania is a region of west-central Greece that lies along the Ionian Sea, west of Aetolia, with the Achelous River for a boundary, and north of the gulf of Calydon, which is the entrance to the Gulf of Corinth. Today it forms the western part of the prefecture of Aetolia-Acarnania. The capital...

 the news that Aeacides

Aeacides of Epirus

Aeacides , king of Epirus , was son of Arymbas and grandson of Alcetas I. He succeeded to the throne of Epirus on the death of his cousin Alexander, who was slain in Italy. Aeacides married Phthia, the daughter of Menon of Pharsalus, by whom he had the celebrated Pyrrhus and two daughters, Deidamia...

, king of Epirus

Epirus

The name Epirus, from the Greek "Ήπειρος" meaning continent may refer to:-Geographical:* Epirus - a historical and geographical region of the southwestern Balkans, straddling modern Greece and Albania...

, had recovered possession of his throne, induced him to turn his arms against that monarch, whom he defeated in a pitched battle. Aeacides with the remnant of his forces having afterwards joined the Aetolians

Aetolian League

The Aetolian League was a confederation of tribal communities and cities in ancient Greece centered on Aetolia in central Greece. It was established, probably during the early Hellenistic era, in opposition to Macedon and the Achaean League. Two annual meetings were held in Thermika and Panaetolika...

, a second action ensued, in which Philip was again victorious, and Aeacides himself fell in the battle. The Aetolians hereupon abandoned the open country, and took refuge in their mountain fastnesses. According to Justin

Junianus Justinus

Justin was a Latin historian who lived under the Roman Empire. His name is mentioned only in the title of his own history, and there it is in the genitive, which would be M. Juniani Justini no matter which nomen he bore.Of his personal history nothing is known...

Philip had participated with his two brothers, Cassander and Iollas

Iollas

Iollas , son of Antipater, and brother of Cassander, king of Macedon. He was one of the royal youths who, according to the Macedonian custom, held offices about the king's person, and was cup-bearer to Alexander the Great at the period of his last illness...

, in the conspiracy for the murder of Alexander the Great in 323 BC

323 BC

Year 323 BC was a year of the pre-Julian Roman calendar. At the time, it was known as the Year of the Consulship of Longus and Cerretanus...

. He was the father of Antipater Etesias

Antipater Etesias

Antipater Etesias was the son of Cassander's brother Phillip. He became king after the death of Ptolemy Keraunos and the ousting of Meleager. His reign lasted only a period of 45 days. The Macedonians gave Antipater the name Etesias, because the etesian winds blew during the short time that he was...

.