R
RobedWithLight
Guest
Actually, only a Pope can convene a plenary or ecumenical council. Papal approval is required to give authority to conciliar decrees, and this must be subsequent to conciliar action unless the pope, through his personal presence and conscience has already given his official sanction.Since a Council first needs both approval and consent from the Pope in order to be an Ecumenical Council, then that means that the Ecumenical Council holds equal weight in authority as an authoritative Papal document.
However, the Pope can, even without an ongoing Council proclaim Dogmatic definitions like Pius XII did in 1950 when he proclaimed the dogma of the Assumption of the Virgin, 12 years before the Second Vatican council convened.