Although the two states established relations in February 1963[citation needed], their cooperation has only started to increase recently, with their first major bilateral agreement being signed in early 2017.

The Holy See maintains an apostolic nunciature in Brazzaville, while Congo does not yet have any diplomatic or consular mission to Vatican City.

[1] It is instead represented by its Ambassador to France, who is accredited to several other countries, including the Holy See.

Cardinal Pietro Parolin, the Vatican's Secretary of State, and Prime Minister Clément Mouamba of Congo were present at the signing of the agreement, as were a number of high-ranking government and religious officials.

[4] Cardinal Peitro Parolin visited Brazzaville for the signing of the bilateral agreement, as part of his African tour.