[i] J. Y. Sheppard, The Fall of Rome and the Rise of New Nationalities.
[j] H. S. Williams, History of the Art of Writing.
[k] Valerius Maximus, De Factis Dictisque Memorabilibus Libri IX.
[l] W. A. Becker, Gallus, oder römische Scenen aus der Zeit Augusts.
Chapter XXXIX.
[b] G. F. Hertzberg, op. cit.
[c] Thomas Keightley, op. cit.
[d] Herodianus, Ἡρωδιανοῦ τῆς μετὰ Μάρκον Βασιλείας ἱστοριῶν βιβλὶα ὀκτώ.
[e] Dion-Cassius Cocceianus, op. cit.
[f] Augustan History (Historiæ Augustæ Scriptores).