Note 008
Ducange (Familiae Byzantinae, p. 44) bestows on him, after Zonaras, the name of Constantine; a name somewhat unlikely, as it was already occupied by the elder brother. That of Hannibalianus is mentioned in the Paschal Chronicle, and is approved by Tillemont, Hist. des Empereurs, tom. iv. p. 527.
Note to Chapter 18 of DECLINE & FALL by Gibbon