Wikipedia
Gutasaga
Gutasaga (Gutasagan) is a saga regarding the history of Gotland before its Christianization. It was recorded in the 13th century and survives in only a single manuscript, the Codex Holm. B 64, dating to ca. 1350, kept at the National Library of Sweden in Stockholm together with the Gutalag, the legal code of Gotland. It was written in the Old Gutnish dialect of Old Norse.