(de Guzman), founder of the Dominican order of monks, was born at Calahorra in Aragon, 1170. He preached with great fury against the Albigenzes, when Pope Innocent III. made a croisade against that unhappy people; and was inquisitor in Languedoc, where he founded his order, and got it confirmed by the Lateran council in 1215. He died at Bologna in 1221, and was afterwards canonized. The Dominican order has produced many illustrious men. See Dominicans.