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In page Æthelstan:

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Æthelstan's court was perhaps the most cosmopolitan of the Anglo-Saxon period.[10] The close contacts between the English and European courts ended soon after his death, but descent from the English royal house long remained a source of prestige for continental ruling families.[11] According to Frank Stenton in his history of the period, Anglo-Saxon England, "Between Offa and Cnut there is no English king who played so prominent or so sustained a part in the general affairs of Europe."[12]