What this song renders
The documented spine runs straight. In 337 BC Philip married Cleopatra Eurydice, a Macedonian noblewoman connected to the powerful Attalus; at the wedding feast Attalus called on the Macedonians to ask the gods for a legitimate successor to the throne. Alexander answered with a thrown cup, and in the fallout Olympias withdrew to her brother’s court in Epirus and Alexander to Illyria (Plutarch, Alexander 9). The following year Philip was cut down at Aegae by his bodyguard Pausanias of Orestis, in the theatre, during the wedding celebrations of his daughter — Olympias’s own daughter — to Alexander of Epirus (Diodorus 16.93–94).
Then the record splits. Pausanias had his own grievance, and Diodorus gives it in full. But Justin (9.7) has Olympias prepare the assassin’s escape, honour his corpse with a golden crown and dedicate the murder weapon; Plutarch says the greatest share of the blame fell on her. Modern scholarship — Carney above all — treats her involvement as genuinely unresolved rather than proven or cleared. The track sits on exactly that blank and declines to close it, in either direction.
The purge is the same shape. Cleopatra Eurydice and her infant died in the aftermath, and the hostile tradition lays both deaths at Olympias’s door — Justin has the child killed in its mother’s arms and the mother driven to hang herself, and Plutarch reports Alexander’s anger at his mother over it. Even the child is uncertain: the sources give a daughter in one place and a son in another. What the song renders is not the act but the refusal to account for it — three graves in one autumn, and a queen who will not say which of them were hers.
The marriage, Attalus’s toast, the quarrel, the withdrawal to Epirus, Philip’s assassination at Aegae and the deaths of Cleopatra Eurydice and her child are all in the sources. Who ordered which death is not. Olympias’s hand in Philip’s murder is suspected and never proven, and her hand in the purge is alleged by hostile later writers who needed her guilty. The album keeps the ambiguity as the substance of the track rather than resolving it — the cold refusal to answer is the invention, and the invention is the point.