GUIBERT OF NOGENT I 24), historian and theologian, was born of noble parents at Clermont-en-Beauvoisis, and studied at the Benedictine abbey of Flavigny (Flaviacum) or St. Germer, where he devoted himself at first to the secular poets, and later changed to theology, through the influence of Anselm of Bec, afterwards of Canterbury. In '104, he became head of the abbey of Notre Dame de Nogent. Of his works which appeared at Paris in 1651 and in Migne's Patrol. Lat., vols. 156 and 184, the chief are his interesting autobiography, De vita sua, sive mono diarum, and his history of the first crusade, Gesta Dei per Francos. The former was translated into English by C. C. Swinton Bland (1926).
See H. von Sybel, Geschichte des ersten Kreuzzuges (Leipzig, 1881) ; B. Monod, Le Moine Guibert et son temps (1905) ; and Guibert de Nogent; histoire de sa vie (ed. G.. Bourgin, '907).