This secret conspiracy, and its important consequences, may be traced in the fragments of Priscuss p. 37, 38, 39, 54, 70, 71, 72 [p. 146-150, 180, 210-214, ed. Bonn]. The chronology of that historian is not fixed by any precise date; but the series of negotiations between Attila and the Eastern empire must be included within the three or four years which are terminated, A.D. 450, by the death of Theodosius.