What is "dulcinian"

The Dulcinians were a religious sect of the Late Middle Ages, originating within the Apostolic Brethren. The Dulcinians, or Dulcinites, and Apostolics were inspired by Franciscan ideals and influenced by the Joachimites, but were considered heretical by the Catholic Church. Their name derives from the movement's leader, Fra Dolcino of Novara (ca. 1250–1307), who was burned as a heretic on the orders of Pope Clement V.