Twelve years have passed since Æthelstan was crowned as king of the West-Saxons, but that was not enough, for his ambition was to rule over the whole of Britain. Early in his reign he gave his own sister in marriage to Sihtric One-Eye, King of York, as a token of friendship and alliance, but when Sihtric died the following year and his kinsman King Gofraid of Dublin succeeded to the throne, Æthelstan seized the whole of Northumbria, putting an end to decades of Norse rule. At Earmont, Æthelstan
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