 The exact significance of the style, which has been used occasionally for other prelates since the middle of the 5th century, is nowhere officially defined but, according to the Oxford Dictionary of the Christian Church, the title has been criticized in the Catholic Church as incompatible with the claims of the Holy See.The monastic communities of Mount Athos are stauropegic and are directly under the jurisdiction of the ecumenical patriarch, who is the only bishop with jurisdiction thereover.Athos, officially the "Autonomous Monastic State of the Holy Mountain” (), is a self-governed polity within the Greek state subject to the Ministry of Foreign Affairs in its political aspect and to the ecumenical patriarch of Constantinopole as regards to its religious aspect and is home to 20 monasteries and numerous other monastic communities.