In the late Middle Ages, Louis II of Provence sold the land to the lords of Abacus-Cental and Rocca Sparviera. They moved in farming families from Piedmont. The farmers were followers of Pierre Vaudes (Peter Waldo). They were part of a group, known as the Vaudois or Waldensians, who had separated from the Catholic Church in 1170. They believed in a simple life based on a line in the Gospel of Matthew. This put them in opposition to the rich and powerful church. In 1530, a Dominican priest, Jean de Roma, began a campaign against the Vaudois because he said they were heretics. His gangs attacked the town and burnt many houses and killed many of the people.