...d Alexander himself and ruled the Macedonians in his stead. Therefore encountering Demetrius at Amphipolis he came near to being expelled from Thrace , but on Pyrrhus' coming to his aid he mastered Thrace and afterwards extended his empire at the expense of the Nestians and Macedonians. The greater part of Macedonia was under the control of Pyrrhus himself, who came from Epeirus with an army and was ...