Even in King Archelaus’ time there had been an uprising led by the Lyncestian prince Arrhibæus, in concert with the Elymean Sirrhas, either to avenge the removal of the rightful heir to the throne, or to support the claim of Amyntas, the son of Arrhidæus who was grandson to the Amyntas whom Perdiccas caused to disappear. Archelaus had obtained peace by giving his elder daughter in marriage to Sirrhas, and his younger to Amyntas. He was killed, according to tradition, while on a hunting expedition. His son Orestes, who was a minor, succeeded him under the regency of Æropus, but the regent murdered Orestes, and himself became king. Æropus was undoubtedly the son of that Arrhibæus who belonged to the Bacchiadæ line of Lyncestians settled on the borders of Illyria that had so frequently aided his forefathers in their uprisings against the Macedonian kings. The conduct of Æropus and of his sons and grandsons during the next sixty years shows them to have persistently opposed the new monarchical tendencies of the royal house, and to have steadily upheld the laxer system of former times. The constant succession of revolts and the frequent changes of sovereigns that followed are proof of the struggles that were constantly being waged between the members of the royal line and the particularist party.
Æropus was well able to uphold the dignity of his rank, but at his death in 392 Amyntas took possession of the throne; he was murdered by Derdas in 391 and Æropus’ son, Pausanias, became king. He was deposed in his turn by that Amyntas, son of Arrhidæus (390-369 B.C.), in whose person the oldest line of the royal house came again into its rights.
[390-360 B.C.]
The years of his reign were marked by internal disorders that made Macedonia ready to fall an easy prey to any attack. Summoned possibly by the Lyncestians, the Illyrians broke into the land and devastated it, defeated the army of the king, and forced the king himself to take flight beyond the borders. Argæus had been on the throne two years, whether he was Pausanias’ brother or a Lyncestian remains undecided. But aided by Thessaly Amyntas returned, and regained the kingdom, which he found in wretched plight, all the cities and coast lands being in the power of the Olynthians, while even Pella had shut its doors against the king.
There followed as a result of the Peace of Antalcidas, the expedition of the Spartans against Olynthus, which was joined by Amyntas, also by Derdas, prince of Elimea, with four hundred horsemen. But success was not so easy as had been anticipated, and Derdas was taken prisoner. When Olynthus was finally subdued (380 B.C.), Thebes rose in revolt, and Sparta was defeated at Naxos and at Leuctra. Olynthus renewed the Chalcidian alliance; and Jason of Pheræ, uniting the Thessalian powers, compelled Amyntas III to enter his alliance. On the threshold of a brilliant success Jason was assassinated (370 B.C.). The irresolute Amyntas had not succeeded in upholding his sovereignty, and a little later he died. He was succeeded by the oldest of his three sons, Alexander II, who was soon brought by his mother, the Elymean, to an untimely end. She had for long been carrying on a secret love intrigue with Ptolemæus, of uncertain lineage, who was the husband of her daughter. She persuaded him, during an absence of Alexander in Thessaly, to take up arms against Alexander on his return, and the Thebans rushed to join the movement, it being necessary to impair Macedonia’s power before she could gain further victories in Thessaly. Pelopidas arranged a compromise whereby thirty of Alexander’s pages were placed as hostages and Ptolemæus received a part-principality, the name of which he assumed. This compromise seemed to be effected only to hasten the downfall of the king, who was assassinated during the course of a festival dance. His mother bestowed her hand upon the murderer, also the throne, to which he acceded under the name of guardian over the two younger sons, Perdiccas and Philippus (368-365 B.C.).
Summoned from Chalcidice Pausanias, called “of the kingly line,” though to which branch of the royal family he belonged cannot be ascertained, commenced a vigorous campaign against the regent. His success was immediate; Eurydice fled with her two sons to Iphicrates, who was stationed with an Attic fleet in neighbouring waters, and he finally put down the revolt. Still Ptolemæus’ position had not been rendered more secure; the murder of Alexander was a breach of the agreement with Thebes, and the friends of the murdered king applied to Pelopidas, who advanced with a hastily gathered army. But Ptolemæus’ gold brought disaffection in the ranks, and Pelopidas was obliged to content himself with making a new agreement with the king. Ptolemæus placed his son Philoxenus and fifty hetæri as hostages for his good faith; this was perhaps the motive that brought Philippus to Thebes.