Þorsteins saga Víkingssonar
Þorsteins saga Víkingssonar or The Saga of Thorstein, Viking's Son is a legendary saga which takes place in the 7th century. It is about the father of Frithjof the Bold. It begins in Norway and Sweden (with locations such as Ulleråker), but continues into exotic places such as India. It is not one of the more famous sagas, but it is still considered to be an entertaining story. It is a prequel to Friðþjófs saga ins frœkna, The Saga of Fridthjof the Bold.
It has been compared to the runestone Sö 54 in Bjudby, Södermanland, Sweden, as it also mentions a prominent family, and besides the father Víkingr it names three sons with the same names as in the saga, and there are also close correspondences with the other names.