What this song renders
By the late 990s Olaf Tryggvason had completed his transformation from raiding war-leader to Christian king of Norway and was prosecuting conversion at the edge of his sword. His political project required a powerful southern alliance — ideally a marriage to the wealthiest widow in Scandinavia. Sigrid was the obvious match.
The Heimskringla’s account in Olaf Tryggvason’s saga (ch. 43) is precise: Olaf travelled to meet her, demanded she convert as a precondition of marriage, and when she refused, struck her in the face with his glove. Snorri reports her response as: “This may well be thy death.” The chronicle treats the moment as the political fact that explains the alliance against him at the Battle of Svolder two years later.
Modern historians (Bagge, Sawyer) treat the Sigrid–Olaf episode with caution — Snorri is writing 230 years after the events and the ‘dangerous queen who curses a king to death’ is a saga genre convention. But the political substance is consistent: Olaf’s courtship failed, Sigrid joined the coalition that killed him at Svolder, and the saga’s narrative reads the slap as the cause.
The slap, the demand for conversion, and the curse are Heimskringla-only and post-date the events by two centuries. The political outcome — failed courtship, the Svolder alliance, Olaf’s death — is documented in multiple skaldic sources. The album takes Snorri at his word about the scene because the political fact it explains is real.