The Latran IV concile takes place in the palace and church in Roma that share this name. It is one of the most important of all history and many subjects were discussed, as varied as the Albigensis crusade (Montfort was confirmed in his conquered territories), the polemic about ordalie (a practice the concile reproved), and liturgy. On this last matter, it fixed at last catholic sacrements in their near-final form and insisted on the need for more competent predicators and confessors.