Some critiqued Paul VI's decision; the newly created Synod of Bishops had an advisory role only and could not make decisions on their own, although the Council decided exactly that. During the pontificate of Paul VI, five such synods took place, and he is on record of implementing all their decisions. Related questions were raised about the new National Bishop Conferences, which became mandatory after Vatican II. Others questioned his Ostpolitik and contacts with Communism and the deals he engaged in for the faithful.

How many Synod of Bishops took place during Paul VI's papacy?