Bernard of Clairvaux,
Saint (1090?-1153); Fr. monk & theological writer: founder of the Cistercian order: his day is Aug. 20
See Bernard of Clairvaux in American Heritage Dictionary 4
(bər-närdˈ, bĕr-närˈ; klâr-vōˈ), Saint 1090-1153.
French monastic reformer and political figure. Widely known for his piety and mysticism, he was instrumental in the condemnation of Peter Abelard and in rallying support for the Second Crusade.