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
Holy See state, not to the Holy See. The difference between the two coats of arms is that the arms of the Holy See have the gold key in bend and the silver key in bend sinister (as in the sede vacante coat of arms and in the external ornaments of the papal coats of arms of individual popes), while the reversed arrangement of the keys was chosen for the arms of the newly founded Vatican City State in 1929. Holy See The Holy See (; ; ), also called the See of Rome, is the apostolic episcopal see of the bishop