Perdiccas, a general of Alexander the Great, assassinated near Memphis in 321 B. C. He was descended probably from the royal house of Orestis, a Macedonian province, and early attached himself to the court of Philip, at the time of whose assassination (336) he was an officer of his body guard. Under Alexander he commanded a division of the phalanx at the battles of the Granicus, Issus, and Arbela, and was afterward frequently employed in separate commands. When Alexander made a distribution of honors at Susa, Perdiccas received a crown of gold, and a daughter of the satrap of Media in marriage. After the death of the king (323) he bore a prominent part in the troubles between the cavalry and the infantry, and after the settlement of the quarrel he was made regent under the title of chiliarch of the horse guards, Philip Arrhida3us, half brother of Alexander, being nominally king. He succeeded in crushing Meleager, his co-regent, with all of his principal partisans, and managed for a time to retain his power in security. In 322 he invaded Cappadocia, defeated its satrap Ariarthes in two battles, and reduced the country.
Afterward he marched into Pisidia, and captured Laranda and Isaura. He married Nicsea, daughter of Antipater, and put to death Cynane, the half sister of Alexander; but this aroused so much indignation among the soldiers, that he was forced to marry her daughter to King Arrhidaeus. An attempt to bring Antigonus to account for his conduct in the management of his government led to hostilities. Antigonus fled to Macedonia, and An-tipater, Craterus, and Ptolemy leagued against Perdiccas. He determined to attack Ptolemy, and, leaving Eumenes in command in Asia Minor, marched as far as the Nile without opposition. In attempting to cross that river he was repeatedly repulsed, and in the last effort lost so many men that the discontent in his army broke out in open mutiny. Several officers, headed by Seleucus and Antigenes, went to his tent and despatched him.