Olaf Tryggvason went looking for Hakon Sigurdarson in a house in Norway, but was unable to find him: he and his servant Karker were hidden beneath a pigsty. The two men overheard Olaf putting a price on Hakon’s head, and from Karker’s reaction Hakon guessed that thoughts of betrayal had crossed his mind.

Neither Hakon nor Karker dared sleep, for fear that the other might take the opportunity for murder. But eventually Hakon dozed off, and when he cried out in his sleep a nervous Karker knifed him to death. Karker took Hakon’s head as a trophy to Olaf; however, Norway’s new king rewarded the traitor with summary execution.

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