The wife of Philip II. of Macedonia, and mother of Alexander the Great; divorced by Philip, who married another, she fled to Epirus, and instigated the assassination of Philip and the execution of her rival; returned to Macedonia on the accession of her son, who always treated her with respect, but allowed her no part in public affairs; on his death she dethroned his successor, but driven to bay in her defence afterwards, she was compelled to surrender the power she had assumed, and was put to death 316 B.C.