Saga: Hsona (Ágr, Fsk, H-Hr, Hkr, Mork). ;
Eysteinn, the eldest son of Haraldr gilli, arrived in Norway from Scotland in 1142 with his mother Bjaðǫk (Blathac; see Genealogy II.4 in ÍF 28). He ruled jointly with his half-brothers, Sigurðr munnr (d. 1155) and Ingi, until his death. Eysteinn was killed by his brother-in-law and former retainer, Símun skálpr ‘Sword-sheath’ Hallkelsson, in Bohuslän (part of present-day Sweden) on 21 August 1157. See Ágr (ÍF 29, 51-2; Ágr 1995, 76-9), Mork (Mork 1928-32, 440-62; Andersson and Gade 2000, 389-404), Fsk (ÍF 334-41; Finlay 2004, 269-75), Hkr (ÍF 28, 321-32, 337-46; Hollander 1991, 749-57, 760-7), H-Hr (Fms 7, 228-51). See also Orkn (ÍF 34, 193, 239-40; Hermann Pálsson and Edwards 1987, 183-4). ;
Events documented in poetry: Eysteinn’s arrival in Norway in 1142 (ESk Run 1); his punishment of insubordinate farmers in Viken and in Hisingen (ESk Run 2-4); his raids in Orkney (ESk Eystdr 1), Scotland (ESk Run 5) and England (ESk Run 6-9) in 1151; his failure to prevent the slaying of his half-brother, Sigurðr munnr, in 1155 (ESk Ingdr 4); three anecdotes about Eysteinn and the poet Einarr Skúlason (ESk Lv 4-6); his death at the hand of Símun skálpr (ESk Eystdr 2). See also ESk Geisl 8, 71VII, ESk Harsonkv, ESk Run 10 and Anon Nkt 56-7, 59.