Congregation for Extraordinary Ecclesiastical Affairs

The Section for Relations with States or Second Section of the Secretariat of State is the body within the Roman Curia charged with dealing with matters that involve relations with civil governments. It has been part of the Vatican Secretariat of State since 1909.

It is analogous to the foreign ministry of a state.

The origin of this body is found in the Congregatio super negotiis ecclesiasticis extraordinariis Regni Galliarum (Congregation on the Extraordinary Ecclesiastical Affairs of the Kingdom of France) that Pope Pius VI set up on 28 May 1793 to deal with problems arising for the Church as a result of the French Revolution. After the fall of Napoleon, Pope Pius VII gave it competence for negotiations with all governments about ecclesiastical matters and renamed it the Congregatio extraordinaria praeposita negotiis ecclesiasticis orbis catholici (Extraordinary Congregation in Charge of Ecclesiastical Affairs of the Catholic World). Under Pope Leo XIII, its name was shortened to Congregatio pro negotiis ecclesiasticis extraordinariis (the Congregation for Extraordinary Ecclesiastical Affairs), which remained its title even after Pope Pius X in 1909 made it part of the Secretariat of State.

This arrangement was incorporated into the 1917 Code of Canon Law, which described the Secretariat of State as composed of three sections, of which this congregation was the first:

In its canon 255, that Code defined the congregation's field of competence as erecting or dividing dioceses and appointing bishops where negotiations with civil governments were involved, and other matters that the Pope might choose to entrust to it, especially those in some linked to civil law and the Holy See's agreements and concordats with states. The Cardinal Secretary of State was concurrently prefect of the Congregation for Extraordinary Ecclesiastical Affairs with the secretary equalivant to the current secretary for Relations with States.

...
Wikipedia