Holy See of the East of Rome also claims the title of the Catholicos and the Holy Apostolic See of St. Thomas. Patriarch Mar Addai II, is the Catholicos of the Ancient Church of the East. The current Seat of the Catholicos of Ancient Church of the East is in Baghdad, Iraq. The official title of the Head & Father of the Syro-Malabar Catholic Church is "the successor to the Holy Apostolic See of St. Thomas and the Gate of All India". The church is headed by the Major Archbishop of Ernakulam-Angamaly, Cardinal Maran Mar George Alencherry. The current Seat of the Major Archiepiscopal Curia
Embassy of the United States to the Holy See in 1953. In 1994, the U.S. government acquired the property as the new chancery for embassy. On October 16, 2017, Callista L. Gingrich was confirmed by the U.S. Senate as the next Ambassador to the Holy See. The embassy is a part of the "Tri-Mission Community" in Rome, the other two being the Embassy of the United States, Rome and the United States Mission to the U.N. Agencies in Rome. Formal diplomatic relations with the Holy See were established in 1984 by President Ronald Reagan and Pope John Paul II. The mission works in partnership with the Holy See on