Following the death of Alexander, the rule of his empire was given to his half-brother Philip Arrhidaeus and Alexander's son Alexander IV.[6] However, since Philip was mentally ill and Alexander IV born only after the death of his father, a regent was named in Perdiccas; in the meantime, the former generals of Alexander were named satraps of the various regions of his empire.[7]
Several satraps were eager to gain more power, and when Ptolemy I Soter, satrap of Egypt, rebelled with other generals, Perdiccas moved against the former but was killed by a mutiny in his camp. Ptolemy declined the regency and instead brought to the office Peithon and Arrhidaeus. This designation met the strong opposition of Eurydice, wife of Philip III, leading, in the meeting called in 321 BC at Triparadisus of all the generals, to their replacement with Antipater.[8] The meeting also proceeded to divide again the satrapies between the various generals.[9]