Austria

After Hitler invaded Austria in 1938, Germany didn't recognise Austria's existing concordat, made with the dictator Dollfuss, and it also didn't extend its own concordat to the conquered territory. Therefore in 1945 at war's end, the new Republic of Austria found itself with no agreement with the Vatican. It wasn't at all clear that this democratic government would resume a concordat dating from two dictatorships ago.

However, the Vatican was anxious to save the Dollfuss concordat, as it could hardly expect to get such favourable terms from a democratic legislature. It therefore made enough concessions to get the concordat re-instated. Thus the Vatican gave ground on Church financing and also on marriage, permitting Catholics to avail themselves of their rights under the civil code in order to sue for divorce.

The financial clauses of the 1933 concordat have been updated six times: the last of these “Supplementary protocols” was signed on 5 March 2009. Today, the Dollfuss concordat, in this amended form, still regulates Austria's Church-state relations.

Sources

	Concordat negotiation: Austria 1933
	A rare behind-the-scenes look at the tactics of a shrewd negotiator, Cardinal Pacelli, the future Pius XVII
	The Counter-Reformation of 1933-34 and the Dollfuss concordat
	Dollfuss destroyed Austrian democracy, thus paving the way for Hitler. During the misery of the Great Depression he suspended Parliament, banned the political parties that opposed him and relied instead upon Church support. The price was a concordat, which still remains partly valid today.
	The Dollfuss Concordat with Secret Supplement (1933) : text
	Dollfuss was assassinated a couple of months after ratifying the concordat, but it remained in force until the Germans invaded in 1938. This concordat was negotiated with the future Pius XII and, like the one he concluded with Hitler, contains a secret supplement. The concordat was officially revived in 1957, by which time the state had long since made marriage a civil matter and financial support for the Church a private affair (though the Austrian Government still collects "church tax").
	Glossary for the Dollfuss concordat
	Apostolic administration, Apostolic Signature, Canon Law, Canonical mission, Congrua, Legal/juristic personality, Personal prelature, Status under public law, Religion funds, Rites of the Catholic Church, the Vow of stability — and how Church finances got reformed by the Edict on Idle Institutions.