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Christians (Chaldean). The Chaldean Christians, or converted Nestorians, are to be found chiefly in Persia, Kurdistan, Mesopotamia, and Turkish Armenia. They are ruled by the "Chaldean Patriarch of Babylonia," who resides at Mosul and Bagdad. He has under him two archbishops and ten bishops. In 1892, the Nestorian patriarch Marchisnu, with the last remnants of his sect, sought union with the Holy See, thus putting an end to what was once known as the Nestorian schismatic Church. In Persia and the surrounding countries the Catholics of various rites number about 63,000. See ORIENTAL RITES.