Zeno (16), emperor of the East a.d. 474–491, is famous in church history for the publication of the HENOTICON and for his active part in the prolonged disputes about Timotheus Aelurus, Timotheus Salofaciolus, Peter Mongus, and Peter the Fuller. Pope SIMPLICIUS and ACACIUS used him very effectually against their opponents. For a full analysis of the letters of popes Simplicius and Felix III. to him see Ceillier, t. x. pp. 410–420.
[G.T.S.]