Foundation and enlargement The mother church, the Old Catholic Church of the Netherlands, was established in the 18th century as a result of tensions between the local Catholic hierarchy and the
Roman Curia. The other churches, such as the Catholic Diocese of the Old Catholics in Germany, and the Christian Catholic Church of Switzerland, followed suit after the
First Vatican Council, which defined the dogma of
papal infallibility. Old Catholic Church of Slovenia (with bishops Radovan Jošt and Anton Kovačevič), and Old Catholic Church of Serbia (with bishop Milan Dobrovoljac (1954–1966). Three churches formed "Union of Old-Catholic Churches in Yugoslavia" (1954). This union eventually ceased to exist with break-up of Yugoslavia (1991–1992) and even before that, the Old Catholic bishopric in Serbia was extinguished, and the same happened with bishoprics in
Slovenia and
Croatia. Finally, remaining Old Catholic parishes in Croatia and other parts of former Yugoslavia were placed under jurisdiction of the
Old Catholic Church of Austria. In turn, in 1998 the
Polish National Catholic Church's General Synod put in place a set of guidelines heavily restricting intercommunion with Old Catholic Churches that ordained women including forbidding its bishops from being part of consecrations of any bishops from such churches, and vice versa. ==Organization==