The Heimskringla saga states that Eystein Glumra was the father of Rognvald Eysteinsson and Sigurd Eysteinsson:[1][2][3][4][5] "The first earl of the Orkney Islands was ... Sigurd ... a son of Eystein Glumra, and brother of Ragnvald earl of More.
After him Torf-Einar, a son of Ragnvald ... was long earl, and was a man of great power".
According to the Orkneyinga saga, Eystein Glumra was the son of Ivar Halfdansson and grandson of Halfdan the Old.
Two novels by Linnea Hartsuyker, The Half-Drowned King (2017) and The Sea Queen (2018), cover the lives of Eystein's children.
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