Tora Mosterstong

Tora Mosterstong —also known as Thora Mostaff—was one of Harald Fairhair's concubines and the mother of Håkon the Good; Harald Fairhair's youngest son and the third King of Norway (c. 935–961).

Title illustration for Snorri Sturluson's saga of Harald Fairhair. According to Snorri Sturluson's Saga of Harald Fairhair (Haralds saga hárfagra), Tora was from the island of Moster and was descended from the clan (ætt) of Horda-Kåre (Hǫrða-Kári):

A page of the Codex Frisianus from the saga of Harald Fairhair.

Snorri consistently speaks of Tora as concubine and maidservant, which tends to produce the wrong connotations. Horda-Kåre was one of Harald Fairhair's old allies, and held high office at the Battle of Hafrsfjord. When Tora had a place with the king, it must have been part of a conscious policy to keep the two clans close.

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