The Declaration of Ravenna is a Roman Catholic–Eastern Orthodox document issued in 2007 re-asserting that the bishop of Rome is indeed the Protos, although future discussions are to be held on the concrete ecclesiological exercise of papal primacy.
The signing of the declaration highlighted the internal tensions between the Patriarch of Constantinople and the Moscow Patriarchate, who did not fully agree on the whole extent of the statement, with the Moscow delegation walking out of the talks at one point. [1]