Regent of Macedon and Greece On the Alexander's
departure eastward in 334 BC, Antipater was left regent in Macedonia and made "general (
strategos) of Europe", positions he held until 323/2 BC. The European front was to prove initially quite agitated, and Antipater also had to send reinforcements to the king, as he did while the king was at
Gordium in the winter of 334–333 BC. The
Persian fleet under
Memnon of Rhodes and
Pharnabazus was apparently a considerable danger for Antipater, bringing war in the
Aegean Sea and threatening war in Europe. Luckily for the regent, Memnon died during the siege of
Mytilene on the isle of
Lesbos and the remaining fleet dispersed in 333 BC, after Alexander's victory at the
Battle of Issus. More dangerous enemies were nearer home; tribes in
Thrace rebelled in 332 BC, led by Memnon of Thrace, the Macedonian governor of the region, followed shortly by the revolt of
Agis III, king of
Sparta. The Spartans, who were not members of the
League of Corinth and had not participated in Alexander's expedition, saw in the Asian campaign the long-awaited chance to take back control over the
Peloponnese after the disastrous defeats at the
Battle of Leuctra and
Battle of Mantinea. The Persians generously funded Sparta's ambitions, making possible the formation of an army 20,000 strong. After assuming virtual control of
Crete, Agis tried to build an anti-Macedonian front. While Athens remained neutral, the
Achaeans,
Arcadians and
Elis became his allies, with the important exception of
Megalopolis, the staunchly anti-Spartan capital of Arcadia. In 331 BC Agis started to besiege the city with his entire army, forcing Antipater to act.
Spartan rebellion of King Agis III So as not to have two enemies simultaneously, Antipater
pardoned Memnon and even let him keep his office in Thrace, while great sums of money were sent to him by Alexander. This helped to create, with
Thessalian help and many mercenaries, a force double that of Agis, which Antipater in person led south in 330 BC to confront the Spartans. In the spring of that year, the two armies clashed in the
Battle of Megalopolis. Agis fell with many of his best soldiers, but not without inflicting heavy losses on the Macedonians. Utterly defeated, the Spartans sued for peace; the latter's answer was to negotiate directly with the League of Corinth, but the Spartan emissaries preferred to treat directly with Alexander, who imposed on Sparta's allies a penalty of 120
talents and the entrance of Sparta in the league. . Alexander' the Great's response to Antipater's victory over
Agis III at the
Battle of Megalopolis was to proclaim that "while we have been conquering
Darius here, there has been a battle of mice in
Arcadia". Alexander appears to have been quite jealous of Antipater's victory; according to
Plutarch, the king wrote in a letter to his
viceroy: "It seems, my friends that while we have been conquering
Darius here, there has been a battle of mice in
Arcadia". Antipater was disliked for supporting
oligarchs and
tyrants in Greece, but he also worked with the League of Corinth, built by Philip. In addition, his previously close relationship with the ambitious
Olympias greatly deteriorated. Whether from jealousy or from the necessity of guarding against the evil consequences of the dissension between Olympias and Antipater, in 324 BC, Alexander ordered the latter to lead fresh troops into Asia, while
Craterus, in charge of discharged veterans returning home, was appointed to take over the regency in Macedon. When Alexander suddenly died in
Babylon in 323 BC however, Antipater was able to forestall the transfer of power. ==Role in the Lamian and Diadochi Wars==