Excerpts from Books and Wikipedia
"Æthelstan or Athelstan (...) was King of the Anglo-Saxons from 924 to 927 and King of the English from 927 to his death in 939. He was the son of King Edward the Elder and his first wife, Ecgwynn. . . . Æthelstan centralised government; he increased control over the production of charters and summoned leading figures from distant areas to his councils. These meetings were also attended by rulers from outside his territory, especially Welsh kings, who thus acknowledged his overlordship. More legal texts survive from his reign than from any other 10th-century English king. They show his concern about widespread robberies, and the threat they posed to social order. His legal reforms built on those of his grandfather, Alfred the Great. Æthelstan was one of the most pious West Saxon kings, and was known for collecting relics and founding churches. His household was the centre of English learning during his reign, and it laid the foundation for the Benedictine monastic reform later in the century. No other West Saxon king played as important a role in European politics as Æthelstan, and he arranged the marriages of several of his sisters to continental rulers." [Wikipedia]