Bernard of Clairvaux, O.Cist (1090 - August 20, 1153) was a French abbot and the primary builder of the reforming Cistercian monastic order. After the death of his mother, Bernard sought admission into the Cistercian order. Three years later, he was sent to found a new house, which Bernard named Claire Vallée, 'of Clairvaux', on 25 June 1115. Bernard would preach an immediate faith, in which the intercessor was the Virgin Mary. In the year 1128, Bernard assisted at the Council of Troyes, at which he traced the outlines of the Rule of the Knights Templar, who soon became the ideal of Christian nobility.