In the history of Chrysocheir, Genesius (Chron. p. 67 - 70, edit. Venet.) has exposed the nakedness of the empire. Constantine Porphyrogenitus (in Vit. Basil. c. 37 - 43, p. 166 - 171) has displayed the glory of his grandfather. Cedrenus (p. 570 - 573) is without their passions or their knowledge.