Byrhtferth of Ramsey was one of the most learned scholars of late Anglo-Saxon England, and his two saints' Lives-of Oswald, a powerful bishop of Worcester and York in the tenth century (d. 992), and Ecgwine, the seventh-century founder of Evesham-are among the most important historical sources for our understanding of late Anglo-Saxon England. The Life of St Oswald is the longest surviving work of Anglo-Saxon hagiography, and it
is the principal source for much of our knowledge of tenth-century England, especially the monastic reform movement, the role of King Edgar, the murder of Edward king and Martyr, and the so-called 'anti-monastic
reaction' (of which he is the unique witness). Much less is known about St Ecgwine, both by us and by Byrhtferth, but Byrhtferth's writing has exceptional value once again for the light it throws on tenth-century monasticism and the role of King Edgar in this process.