Catholic Encyclopedia
St. Flavian, bishop of Constantinople, excommunicated Eutyches, was the recipient of the famous "Tome of Leo", deposed by the Latrocinium, died from severe beatings in exile in 449.
For All the Saints
Brief biography of St. Flavian of Constantinople.
Lives of the Saints
St. Flavian, martyr, Archbishop of Constantinople. From Fr. Alban Butler's Lives of the Saints.