First Council of Nicaea, held in 325 under the pontificate of Pope Sylvester I and the reign of C…
Caption:
First Council of Nicaea, held in 325 under the pontificate of Pope Sylvester I and the reign of Constantine 'the Great', engraving on a fresco in the Vatican Library, engraver: Dujardin, printing: Lemercier et Cie. Paris, 1868.