Abstract
The thesis presents the issue of the possibility of not closing the concordat between the Czech Republic and the Holy See from the historical and present point of view. It shows the development of international relations between the Czech Republic and the Holy See in terms of efforts to conclude an international treaty (and previous treaties) - the socalled Concordat, which faithfully replicate the entire development of relations between the two subjects of international law.
It shows the issue of the Austrian Concordat of 1855, the Concordat Modus vivendi Treaty of 1928, the draft of the new Concordat of 2002 and the secret negotiations on the new Concordat of 2014. Further efforts to self-determine clerics and believers in the Czech Republic by concluding a new international treaty can be expected.
The possible conclusion of the new wording will thus be based on the current political situation and the majority consensus, perhaps, for example, as defining against Islamization in the sense of non-indigenous cultures rather than threats of terrorism. Given the current state of secularization, it can be stated that the new Concordat is not necessarily at the moment, and its closure and ratification is not the order of the day.