8 We have heard that a project has been undertaken which We fully approve for the current celebration. It is planned to publish the ancient forgotten evidence of services conferred by religion. Furthermore, the letters, both those from you and those in Our Apostolic records, bear concordant witness to the fact that religion has benefited mankind. It is of great importance to reflect upon this, especially at the present time. Consider what functions the Church fulfilled for your ancestors in establishing and administrating public law; certainly its wisdom, order, and fairness permeated everywhere at the request of all classes. Moreover, the Roman pontiffs have shown themselves guardians and defenders of civil liberty whenever it was placed in critical danger, either when requested to or of their own accord. Your people have also never ceased to fight for this liberty. This has happened many times in the past, especially when the attacks of the bitter enemies of the holy faith had to be beaten back. When the Turks invaded, everyone without exception agrees that the terrible defeat which was threatening most of the Western peoples was averted by the unconquerable courage of the Hungarians. Nevertheless, Our predecessors contributed greatly to the success of the events by supplying money, sending reinforcements, arranging treaties of alliance, and by effective prayer for heavenly support.
Source: Insignes (Vatican.va)