Gerald of Salles was a French monastic reformer who lived from approximately 1050 or 1055 until 1120. Born in Le Buisson-de-Cadouin, he eventually became a canon regular and a hermit. He played a significant role in the expansion of the Cistercian movement by establishing various Benedictine houses that later integrated into the Cistercian order. His spiritual path was closely aligned with the Cistercian tradition, influencing the growth of monasticism in western France.