The Congregation for the Causes of Saints (Congregatio de Causis Sanctorum) is the congregation of the Roman Curia which oversees the complex process which leads to the canonization of saints, passing through the steps of a declaration of "heroic virtues" and beatification. After preparing a case, including the approval of miracles, the case is presented to the pope, who decides whether or not to proceed with beatification or canonization.
The predecessor of the congregation was the Sacred Congregation for Rites, founded by Pope Sixtus V on 22 January 1588 in the Bull Immensa Aeterni Dei. The congregation dealt both with regulating divine worship, and the causes of saints.
Prior to the congregation, the process of canonization was highly fragmented, with many saints being declared by localities, and with little evidence.
