The coverage of the
Libellus de exordio extends from the beginning of Christianity among the English of Northumbria and the foundation of a bishopric at
Lindisfarne, to the death of Bishop
William of Saint-Calais in 1096. The
Libellus demonstrates the continuity of Durham's history, and in particular it justifies William of Saint-Calais's expulsion of Durham's clerical community in 1083 in order to replace it with a group of Benedictine monks drawn from Wearmouth and Jarrow. What historical continuity the
Libellus finds comes from the constant presence of the community's patron,
Saint Cuthbert. The miracles worked in Cuthbert's name during the late Anglo-Saxon period were particularly flamboyant, and the
Libellus contains engaging accounts of some of these, including the miracle of the three waves (when Cuthbert turned a portion of the Irish Sea into blood in order to prevent his followers from taking his relics out of England, see
Libellus ii.11), the foundation of Durham (when Cuthbert's body, being moved across England on a cart, refused to be moved, signaling his desire to remain at Durham, see
Libellus iii.1), and several picturesque deaths visited upon the enemies of Cuthbert's devotees. The work consists of four books: • Book I, from reign of
Oswald (634—642) to reign of
Ceolwulf (729—737) • Book II, from the death of King Ceolwulf (737) to episcopate of
Ealdhun (995) • Book III, from episcopate of Ealdhun (995) to the murder of bishop
Walcher (1080) • Book IV, episcopate of William of Saint-Calais and the refoundation of the Priory (1081—1096) Many earlier sources have been incorporated into the work, particularly the works of Bede and some now lost Northumbrian sources, including a set of "Northern Annals", a
chronicle of the monastery of Durham, and what appear to be the oral reminiscences of the clerks who had been dislodged during William of Saint-Calais's reign. ==Extensions==