The first from Flavian, Bp. of Constantinople to Pope Leo.
A Second One from Flavian to Leo.
To Flavian, Bishop of Constantinople.
To Ravennius, Bishop of Arles.
To the Catholic Bishops of Egypt Sojourning in Constantinople.
To Rusticus, Bishop of Gallia Narbonensis, with the replies to his Questions on various points.
Letter V.
To the Metropolitan Bishops of Illyricum.
(Appointing Anastasius of Thessalonica his Vicar in the province, and expressing his wishes about its government, for which see Letter VI.)