First Council of Nicaea

=== Constantine's entrance ===
"Resplendent in purple and gold, Constantine made a ceremonial entrance at the opening of the Council, probably in early June, but respectfully seated the bishops ahead of himself."<ref name="Carroll 1987 11" /> As Eusebius describes, Constantine "himself proceeded through the midst of the assembly, like some heavenly messenger of God, clothed in raiment which glittered as it were with rays of light, reflecting the glowing radiance of a purple robe, and adorned with the brilliant splendor of gold and precious stones."<ref>{{harvnb|''Vita Constantini''|loc=Book 3, Chapter 10}}</ref>