The Patent of Toleration (German: Toleranzpatent, Hungarian: Türelmi rendelet) was an edict of toleration issued on 13 October 1781 by the Habsburg emperor Joseph II. Part of the Josephinist reforms, the Patent extended religious freedom to non-Catholic Christians living in the crown lands of the Habsburg monarchy, including Lutherans, Calvinists, and the Eastern Orthodox. Specifically, these members of minority faiths were now legally permitted to hold "private religious exercises" in clandestine churches.
For the first time after the Counter-Reformation, the Patent guaranteed the practice of religion by the Evangelical Lutheran and the Reformed Church in Austria. Nevertheless, worship was heavily regulated, wedding ceremonies remained reserved for the Catholic Church, and the Unity of the Brethren was still suppressed. Similar to the articular churches admitted 100 years before, Protestants were only allowed to erect 'houses of prayer' (Bethäuser) which should not in any way resemble church buildings. In many Habsburg areas, especially in the 'hereditary lands' of Upper Austria, Styria and Carinthia, Protestant parishes quickly developed, strongly relying on crypto-protestant traditions. The Patent also regulated mixed faith marriages, foreshadowing the Marriage Patent that was to be released in 1783 seeking to bring marriages under civil rather than canon law. In allowing marriages between religions, if the father was Catholic all children were required to be raised as Catholics whilst if the mother was Catholic only the daughters had to be raised as such.
