Bernard of Clairvaux (1090-1153)

He was a Burgundian abbot credited with the revitalization of the Benedictine order through the nascent Order of the Cistercians. He lived during the time of schism, when the head of the church was in contention.

Benedict was chosen to help decide between the claims on the papacy — ultimately siding with Pope Innocent II rather than the Antipope Anacletus II. Benedict played a significant role in unifying the church and protecting its unity against the threat that this dispute signified.