A cathedral school existed at Chartres as early as the sixth century but did not become famous until the eleventh and twelfth centuries. Under Bishop Fulbert (d. 1028), a pupil of Gerbert of Aurillac, students, among them Berengar of Tours, flocked to Chartres to study the trivium and quadrivium, medicine and theology. Later, Bishop Ivo brought renown in canon law. The high point was reached in the early twelfth century under Bernard of Chartres and his brother Theodoric (Thierry) and their pupils Gilbert of Poitiers (de la Porrée), William of Conches, and Clarembald of Arras. Also associated with the school in various ways were Bernard of Tours, Adelard of Bath, Alan of Lille, and John of Salisbury. The Chartrains of this period were humanists who loved the literature and philosophy of classical antiquity. The richness of their program of studies is evident in Theodoric's...