English Benedictine Reform acceptance of Benedictinism, and that the movement's greatest benefactor, King Edgar, had played a major role in the unification by his demands for adherence to the Benedictine Rule. Æthelwold probably tutored Edgar as a boy, and was very close to him; it is likely that Æthelwold was influential in persuading the king to carry through his reforms and support Benedictine monasticism. Monks became dominant on the bishops' bench during his reign. Æthelwold was close to Queen Ælfthryth and supported the claim of her son Æthelred (978–1016) to be king against his elder half-brother, Edward (975–978). Dunstan supported Edward, who succeeded
Edward IV of England Chapel, Windsor Castle. He was succeeded by his twelve-year-old son Edward V of England (who was never crowned) and then by his brother Richard. It is not known what actually caused Edward's death. Pneumonia and typhoid have both been conjectured, as well as poison. Some attributed his death to an unhealthy lifestyle, as he had become stout and inactive in the years before his death. Edward was an extremely capable and daring military commander. He crushed the House of Lancaster in a series of spectacular military victories. He was a popular and very able king, despite his occasional (if serious)