2 Whilst the new rulers of Portugal were affording such numerous and awful examples of the abuse of power, you know with what patience and moderation this Apostolic See has acted towards them. We thought that We ought most carefully to avoid any action that could even have the appearance of hostility to the Republic. For We clung to the hope that its rulers would one day take saner counsels and would at length repair, by some new agreement, the injuries inflicted on the Church. In this, however, We have been altogether disappointed, for they have now crowned their evil work by the promulgation of a vicious and pernicious Decree for the Separation of Church and State. But now the duty imposed upon Us by our Apostolic charge will not allow Us to remain passive and silent when so serious a wound has been inflicted upon the rights and dignity of the Catholic religion. Therefore do We now address you, Venerable Brethren, in this letter and denounce to all Christendom the heinousness of this deed.
Source: Iamdudum (Vatican.va)