This, remarks Garnerius, is less a letter than a prolix exposition of Theodoret’s view of the Incarnation. Theodoret mentions his condemnation at the Latrocinium and the exile of Eutyches, but says nothing of the favourable action towards himself of Marcianus. Theodosius died on the 29th of July, and Marcian began his reign on the 25th of August, 450. Theodoret could not possibly hear of the exile of Eutyches before the end of September. The document may therefore be dated in the late autumn of 450 before Theodoret had received the imperial permission to return to Cyrus.