I think it’s a tough question that would require some inside knowledge. I mean a cardinal shouldn’t be overruling anyone on anything in that context. I don’t understand why it exists. I don’t understand how you implement a code of canon law for all of the Eastern Churches. In fact the entire concept just seems to perpetuate the idea of Roman supremacy. At least that’s the way it looks to me.
The Congregation for the Oriental Churches began as part of the
Congregatio de Propaganda Fide pro negotiis ritus orientalis, established by Pope Pius IX on January 6, 1862 with the Apostolic Constitution
Romani Pontifices. Pope Benedict XV declared it independent on May 1, 1917 with the Motu Proprio
Dei Providentis and named it
Congregatio pro Ecclesia Orientali. Pope Paul VI with the Apostolic Constitution Regimini
Ecclesiae Universae of Augsut 15, 1967 changed the name to
Congregatio pro Ecclesiis Orientalibus.
As an institution this Dicastery received from the Supreme Pontiff the mandate to be in contact with the Oriental Catholic Churches for the sake of assisting their development, protecting their rights and also maintaining whole and entire in the one Catholic Church, alongside the liturgical, disciplinary and spiritual patrimony of the latin rite, the heritage of the various Oriental Christian traditions.
Its responsibilities were notably increased by Pope Pius XI with the Motu Proprio Sancta Dei Ecclesia of March 25, 1938. More recently Pope Paul VI (Regimini Ecclesiae Universae) and Pope John Paul II (Pastor Bonus) further clarified the scope of the Dicastery, which exercises, ad normam iuris, the same authority over eparchies, bishops, clergy, religious and faithful of the Oriental Rite as do the Congregations for the Bishops, for the Clergy, for the Institutes of Consecrated Life and the Societies of Apostolic Life and for Catholic Education respectively over the dioceses, bishops, clergy, religious and faithful of the Latin Rite. In addition, it has exclusive authority over the following regions: Egypt and the Sinai peninsula, Eritrea and Northern Ethiopia, Southern Albania and Bulgaria, Cyprus, Greece, Iran, Iraq, Lebanon, Palestine, Syria, Jordan and Turkey.
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According to the different fields of competency the Dicastery is assisted by a College of about 50 Consultors who offer professional advice on particular questions or matters of great significance. The Congregation furthermore coordinates the work of three Commissions of experts: The Special Commission on the Liturgy, which seeks to deal with the matters reserved by the
Code of Canons for the Oriental Churches to the Holy See concerning the liturgy of the oriental Catholic Churches; The Special Commission for the Studies of the Christian East, which undertakes to study the collection of documents and initiatives with the purpose of bringing knowledge of the East to Western Catholicism and of deepening the awareness of the patrimony of the Oriental Churches; The Commission for the Formation of the Clergy and Religious, which promotes the formation of oriental students in Rome or elsewhere according to the custom of their institute.
The complex reality of the Oriental Churches with respect to their geographical, cultural and social conditions requires that the great Catholic community will share its resources, which can help the Orientals to keep alive and to develop the most genuine traditions of their Churches according to the instructions of the Second Vatican Council, the norms of the
Code of Canons of the Oriental Churches and the directives of the Supreme Pontiffs.
vatican.va/roman_curia/congregations/orientchurch/profilo/rc_con_corient_pro_20030320_profile.html