Guibert, Abbot of Nogent-sous-Coucy, 1053-approximately 1124

Guibert de Nogent (c. 1055 – 1124) was a Benedictine historian, theologian, and author of autobiographical memoirs. Guibert was relatively unknown in his own time, going virtually unmentioned by his contemporaries. His account of the First Crusade has long been one of the standard primary sources amongst historians of that period, and his account of the Black Mass in Soissons is cited by many medieval historians writing on the subjects of heresy and witchcraft. Nogent only began to catch the attention of scholars who came to him with a greater interest in his extensive autobiographical memoirs and personality during the in 21st century. In terms of the genre of autobiography, Guibert of Nogent picks up in the 12th century where Saint Augustine left off with his Confessions in the 4th century. "The next person to attempt a similar project [after Augustine] was Guibert de Nogent. Completed in 1115, The Monodies was the first fully realized autobiography in more than seven hundred years."