Antigonus, on his return from Upper Asia, declares loudly against Cassander, B. C. 314; despatches his general Aristodemus to Peloponnesus, and frames a league with Polysperchon and his son Alexander; the latter, however, Cassander succeeds in winning over by a promise of the command in Peloponnesus. Alexander was soon after murdered, but his wife Cratesipolis succeeded him, and commanded with the spirit of a man. Meanwhile, Cassander carried war against the Aetolians, who sided with Antigonus, 313; but Antigonus, 312, having sent his general Ptolemy into Greece with a fleet and army, Cassander lost his supremacy. In the peace of 311, the freedom of all the Grecian cities was stipulated; but this very condition became the pretext of various and permanent feuds; and Cassander having murdered the young king, together with his mother, drew upon himself the arms of Polysperchon, who wished to place Hercules on the throne, 310; but the pretender was removed in the manner above described, 309.--Cassander now endeavouring to reestablish his power over Greece, Demetrius Poliorcetes was by his father sent into that country in order to anticipate Ptolemy of Egypt, in the enforcement of the decree for the freedom of the Greeks, 308; the result at Athens was the restoration of democracy, and the expulsion of Demetrius Phalereus.--From any further attack of Demetrius, Cassander was delivered by the war which broke out between Antigonus and Ptolemy, (see above, p. 229.) and had the leisure, once more, to strengthen his power in Greece, until 302, when Demetrius arrived a second time, and, as generalissimo of liberated Greece, pressed forward to the borders of Macedonia; Demetrius was, however, recalled by his father into Asia, and at the battle of Ipsus, 301, lost all his dominions in that quarter of the world. Yet although Athens closed her harbours against him, he still maintained his possessions in Peloponnesus, and even endeavoured to extend them; from thence, in 297, he sallied forth, and once more took possession of his beloved Athens, and after driving out the usurper Lachares, forgave her ingratitude. 5. Cassander survived the establishment of his throne by the battle of Ipsus only three years: and bequeathed Macedonia as an inheritance to his three sons, the eldest of whom, Philip, shortly after followed his father to the grave.