In 794, soon after the Second Council of Nicaea, the first council of the church of the Latin West took place in Frankfurt (Main) with the intention to formulate and stabilize a contra position regarding the veneration of images.
Biographer and confidant of the first Christian emperor Constantine, he was an active player at the Council of Nicaea, though his tolerant approach to Arianism and iconoclast sentiments marred his reputation in Byzantium where (787) the Second Council of Nicaea branded him heretical.
The Second Council of Nicaea in 787 rejected iconoclasm on incarnational and sacramental grounds: "If the Son of God had come into the world of visible realities -- his humanity building a bridge between the visible and the invisible -- then, by analogy, a representation of the mystery could be used -- as a sensory evocation of the mystery.
Indeed, an essential point about Renaissance art is that after centuries in which visual imagery was devoted to religious themes in styles and forms specifically dictated by the Church (at the Second Council of Nicaea in the eighth century), art turns its attention to the secular world and begins to invent its own terms.
These two closely related principles--selection or ordination of episcopal candidates by an episcopal synod and prohibition against secular interference in episcopal appointments (the thirty-first Apostolical Canon was quoted verbatim)--are repeated in the third canon of the Second Council of Nicaea, which declared that: