[Footnote 35: He was the son of Caesar John Ducas, brother
of the emperor Constantine, (Ducange, Fam. Byzant. p. 165.)
Nicephorus Bryennius applauds his virtues and extenuates his
faults, (l. i. p. 30, 38. l. ii. p. 53.) Yet he owns his
enmity to Romanus. Scylitzes speaks more explicitly of his
treason.]