Note 75 — CHAPTER THE THIRD. CONSTANTINE THE SECOND—A. D. 900-943.
Reading edition
It is doubtful which Olave is meant. When Edmund regained Northumbria, Olave Sitricson and Reginald Godfreyson appear to have been joint kings, so that it is probable that the two Olaves divided the supremacy in return for the assistance of the son of Godfrey in reinstating his kinsman. The death of Athelstan is assigned to the years 939 and 941. Ethelward places his death two years after Brunanburgh, in 939, and the charter 411 (Cod. Dip. Ang. Sax., vol. ii.) would favour this date. There are many charters of Edmund in 940, none of Athelstan after 939.