Giacomo Bianconi was an Italian Roman Catholic priest and a professed member of the Order of Preachers. Bianconi — who hailed from Umbria — joined the order in his adolescence and dedicated his pastoral career to his flock and on one notable occasion aided refugees when Frederick II sacked the area in 1248. He also combatted heresies and managed to convert one of their chief propagators while also distinguishing himself through his life of extreme poorness that went past the Dominican standards.