PRELIMINARY REMARKS.
"Agrip", "Fagrskinna", and "Morkinskinna" more or less complete the story of the sons of Magnus. They contain some things omitted by Snorre, while, on the other hand, some facts related by Snorre are not found in the above sources.
Thjodrek the Monk tells of Sigurd that he made a Journey to Jerusalem, conquered many heathen cities, and among them Sidon; that he captured a cave defended by robbers, received presents from Baldwin, returned to Norway in Eystein's lifetime, and became insane, as a result, as some say, of a poisonous drink.
The three brothers became kings in the year A.D. 1103. Olaf died 1115, Eystein 1122 or 1123, Sigurd 1130.
Skalds quoted in this saga are: Thorarin Stutfeld, Einar Skulason, Haldor Skvaldre, and Arne Fjoruskeif.
All books are sourced from Project Gutenberg