9 The very exercise of Catholic worship, in its most essential and traditional manifestations, is not exempt from limitations, since religious assistance in institutes is made dependent on the State, and religious processions are placed under the necessity of obtaining special authorization granted by the Government. Special clauses and restrictions apply even to administration of the Sacraments to the dying and funerals for the dead. Even more manifest is the contradiction regarding property. The Constitution recognizes in all citizens the legitimate faculty of possession and, as is proper in all legislation of civilized countries, guarantees safeguards for the exercise of such important rights arising from nature itself. Nevertheless, even on this point, an exception was created to the detriment of the Catholic Church, depriving her, with open injustice, of all property. No regard is paid to the wishes of those making donations in wills; no account is taken of the spiritual and holy ends connected with such properties, and no respect is shown in any way to rights long ago acquired and founded on indisputable juridical titles. All buildings, episcopal residences, parish houses, seminaries and monasteries no longer are recognized as the free property of the Catholic Church, but are declared - with words that badly hide the nature of the usurpation - public and national property.
Source: Dilectissima Nobis (Vatican.va)