Alexander's widow Nicaea assumed control of his possessions, but after the death of her protector Ptolemy Philadelphus in 246 her position was weakened. When Antigonus carried a naval victory over his enemies and an Aetolian raid into Boeotia threatened Chalcis, Attica and Corinth, she accepted to marry Antigonus' son and heir Demetrius II Aetolicus. During the marriage celebrations in the winter of 245/44 Antigonus took in the garrison of the Acrocorinth and regained control of his former possessions.