Nicholas I Zaya

Mar Nicholas I Zaya (or Zayʿa or Eshaʿya) was the patriarch of the Chaldean Catholic Church from 1839 to 1847. He succeeded Yohannan VIII Hormizd, the last of the Mosul patriarchs who traced their descent from Eliya VI (1558–1591), and his elevation ended four centuries of hereditary succession in the Eliya line. After Zayʿa's accession the Vatican attempted to reform abuses within the Chaldean Church, but its interference was strenuously resisted by several Chaldean bishops. As a result, Zayʿa's short reign was plagued by one crisis after another. In 1846, after the Vatican conspicuously failed to support him against his recalcitrant bishops, he resigned the patriarchate and retired to his native town of Khosrowa, where he died in 1855. He was succeeded by Joseph VI Audo, one of his most determined opponents.