The Concordat of 1855 was a Concordat or agreement between the Holy See and the Austro-Hungarian Empire as regards the Catholic Church in Austria.
The Austrian Bishops' Conference was established in 1849 and agreed to a Concordat which would grant them greater scope in a variety of areas. They were granted full control over their own affairs, including making appointments. The Catholic church was also placed in charge of 98% of public primary schools, i.e. those nominally Catholic and controlled the curriculum. The Catholic ecclesiastical courts were given jurisdiction over marriages where either or both the couple were Catholic.
International repercussions
The Concordat had an impact across Germany stimulating anti-clericism amongst liberal opinion. During the Austro-Prussian War the Austrian soldiers were called "Concordat soldiers". The Austrian defeat in this war forced the Emperor Franz Josef to grant concessions to German liberals in Cisleithania Originally there were plans to extend the Concordat to Hungary (the largest part of Cisleithania), but these never materialised.