Mariology of the popes John Paul II), visits to Marian shrines (Benedict XVI in 2007) and by actively supporting the fathers of Vatican II as they highlighted the importance of Marian veneration (Popes John XXIII and Paul VI) in "Lumen gentium". Popular views like the Assumption and the Immaculate Conception developed into papal teaching over time. Popes have also limited and cautioned against some devotional practices. In 1674 Pope Clement X (1670–1676) indexed books on Marian piety. After the Council of Trent, "Marian fraternities" were founded, fostering Marian piety, not all of which were approved. Not all Popes took the same view on Marian
Prisoner in the Vatican entire city save for the Apostolic Palace; the inhabitants of the city then voted to join Italy. For the next 59 years, the popes refused to leave the Vatican in order to avoid any appearance of accepting the authority wielded by the Italian government over Rome as a whole. During this period, popes also refused to appear at Saint Peter's Square or at the balcony of the Vatican Basilica facing it, as the square in front of the basilica was occupied by Italian troops. During this period, popes granted the "Urbi et Orbi" blessings from a balcony facing a courtyard,