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. Both Lives have been printed only once before, in the nineteenth century, in editions which are riddled with errors and which have misled scholarship for over a century. Neither work has ever been translated into English. The present edition includes facing-page translations, which will make these works accessible to a scholarly audience for the first time. Byrhtferth's Latin is unusually idiosyncratic and difficult, and was frequently misunderstood by the scribe who copied the unique manuscript in which the Lives are preserved. The texts are also accompanied by extensive notes, which explain the historical implications and the often impenetrable Latin. One of the principal features of the new edition is that corruption in the transmitted text has been emended where necessary, based on knowledge of Byrhtferth's Latin style (analysed, for example, in the EETS edition of Byrhtferth's Enchiridion, ed. Lapidge and Baker in 1994). A new edition of Byrhtferth's two saints' Lives has been long awaited, and will be indispensable to the study of Anglo-Saxon history and literature; the texts also throw considerable new light on the archaeology of Anglo-Saxon ecclesiastical sites such as York, Worcester, Ramsey and Evesham.

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. Both Lives have been printed only once before, in the nineteenth century, in editions which are riddled with errors and which have misled scholarship for over a century. Neither work has ever been translated into English. The present edition includes facing-page translations, which will make these works accessible to a scholarly audience for the first time. Byrhtferth's Latin is unusually idiosyncratic and difficult, and was frequently misunderstood by the scribe who copied the unique manuscript in which the Lives are preserved. The texts are also accompanied by extensive notes, which explain the historical implications and the often impenetrable Latin. One of the principal features of the new edition is that corruption in the transmitted text has been emended where necessary, based on knowledge of Byrhtferth's Latin style (analysed, for example, in the EETS edition of Byrhtferth's Enchiridion, ed. Lapidge and Baker in 1994). A new edition of Byrhtferth's two saints' Lives has been long awaited, and will be indispensable to the study of Anglo-Saxon history and literature; the texts also throw considerable new light on the archaeology of Anglo-Saxon ecclesiastical sites such as York, Worcester, Ramsey and Evesham.

Byrhtferth of Ramsey was one of the outstanding scholars of the late Anglo-Saxon Church, the pupil of Abbo of Fleury, probably the most learned man in the Europe of his day. From Abbo, Byrhtferth learned the intricacies of medieval date-reckoning (computus), as well as familiarity with the syllabus of the quadrivium (astronomy, arithmetic, harmony, geometry). The Enchiridion, completed in 1011, is a handbook designed to explain the complexities of computus to young monks in his charge, but Byrhtferth disgresses widely in discussions of metrics and rhetoric, as well as his scientific intersts. As such, it is a work in the forefront of Anglo-Saxon scholarship. This edition of the Enchiridion supersedes that of S. J. Crawford, published for the Society in 1929 as vol. 177 of the Original Series. The new edition contains a full introduction, describing the nature of Byrhtferth's schooling at Ramsey. The text is presented with a facing translation, and is followed by a detailed commentary. The edition also includes the text of Byrhtferth's Latin treatise on computus, which has never been printed before. The Latin text is the model for the Enchiridion, which cannot be understood without reference to it.

During the past generation, Byrhtferth of Ramsey (c. 970 - c. 1020) has emerged as one of the principal authors of late Anglo-Saxon England, whose writings - in both Latin and Old English - are among the most important sources for our understanding of early English history. This work, theHistoria regum, is transmitted anonymously in the single manuscript which preserves it; but Byrhtferth's idiosyncratic and individual Latin style allows certain identification of Byrhtferth as its author.The work is in four parts, and treats the history of the major Anglo-Saxon kingdoms (Kent, Northumbria, Mercia, and Wessex) during the period 560 to 887. The Latin text is accompanied by facing-page English translation, and provided with extensive annotation intended to explain the many referencesto historical events (many of them unrecorded elsewhere) in the text. The Introduction treats the sources on which Byrhtferth drew in compiling this work, and provides full analysis of Byrhtferth's idiosyncratic Latin style. The edition is intended to be a companion volume to Byrhtferth of Ramsey:the Lives of St Oswald and St Ecgwine, published as an Oxford Medieval Text edition in 2009.