After pointing out that superscription, style, expression, sentiments, and circumstances all indicate Theodoret as the writer of this letter, Garnerius proceeds “The objection of Baronius that mention is made of Martinus, bishop of Milan, when there never was a Martinus bishop of Milan, is not of great importance. Theodoret at a distance might easily write Martinus for Martinianus, or a copyist might abbreviate the name to this form.” The date of the letter is marked as after the order to the bishops to remain at Constantinople, and before permission was given them to return home. The Letters were also written to Martinianus of Milan, to John of Ravenna, and to John of Aquileia, but only that to Rufus is extant. Rufus is probably the bishop of Thessalonica.