The Nuttall Encyclopedia
A king of Saxon England from 959 to 975, surnamed the Peaceful; promoted the union and consolidation of the Danish and Saxon elements within his realm; cleared Wales of wolves by exacting of its inhabitants a levy of 300 wolves' heads yearly; eight kings are said to have done him homage by rowing him on the Dee; St. Dunstan, the archbishop of Canterbury, was the most prominent figure of the reign.
Wood, James, ed. Entry for 'Edgar'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/e/edgar.html. Frederick Warne & Co Ltd. London. 1900.