Ciantes, Ignacio (or Ambrogio), an Italian prelate and theologian of the Dominican order, was born at Rome in 1594. After having taught theology in the convent of Minerva, he became provincial of Naples, then general commissary of Calabria and Sicily. Everywhere he reformed abuses, and quickened the taste for letters and sciences. He served as bishop of the two dioceses of Bisaccia and San Angelo, Lombardy, with great zeal, but in 1661 resigned, in order to retire to the convent of Minerva. He died at Rome, December 24, 1667. Besides several discourses, he left Constitutiones et Decreta, etc. (Rome, 1652): — Ceremoniale Ordinis Praedicatorum (Naples, 1654): — Raccolta de Miracoli dell' Imagine di San Domenico di Soriano (Milan, 1640; Rome, 1642; Naples, 1656). See Hoefer, Nouv. Biog. Generale, s.v.; Jocher, Allgemeines Gelehrten-Lexikon, s.v.