Editing Antigonus I Monophthalmus (section)

==Alexander's death==
At the division of the provinces (the so-called [[Partition of Babylon]]) after Alexander's death in 323 BC, Antigonus held authority over Phrygia, [[Lycaonia]], [[Pamphylia]], [[Lycia]] and western [[Pisidia]] confirmed by [[Perdiccas]], the [[regent]] of the empire. However, he incurred the enmity of Perdiccas by refusing to assist [[Eumenes]] to obtain possession of the provinces allotted to him: [[Paphlagonia]] and [[Cappadocia]].<ref name="EB1911">{{EB1911|inline=y|wstitle=Antigonus Cyclops|volume=2|page=125}}</ref> [[Leonnatus]] had left with his army for Greece, leaving Antigonus alone to deal with Cappadocia, a task he apparently could not or would not complete without additional aid. Perdiccas seems to have viewed this as a direct affront to his authority, and led the royal army to conquer the area. From there, Perdiccas turned west towards Phrygia as a provocation toward Antigonus, who escaped with his son [[Demetrius I of Macedon|Demetrius]] to Greece, where he obtained the favor of [[Antipater]], the viceroy of Macedonia (321 BC),<ref name="EB1911"/> and [[Craterus]], one of Alexander's top generals. During the [[First War of the Diadochi]], he formed a coalition with Antipater, Craterus and [[Ptolemy I Soter|Ptolemy]]. In 320 BC, Antigonus sailed to and secured Cyprus.<ref>Arrian, ''Ta Met' Alex.'' 1,30; Richard A. Billows, ''Antigonos the One-Eyed and the Creation of the Hellenistic State'', p. 66.</ref> The war ended in 320 BC, when Perdiccas was murdered by discontented officers ([[Seleucus I Nicator|Seleucus]] and [[Antigenes (general)|Antigenes]]) while unsuccessfully trying to invade Ptolemy's satrapy of Egypt.<ref>[[Arrian]], ''History of the Diadochi'', 1,28; Diodorus Siculus, ''Bibliotheca Historica'', XVIII 33,1-36,5; [[Cornelius Nepos]], ''Parallel Lives, Eumenes'' 5,1.</ref>