The History of the Decline and Fall of the Roman Empire - Edward Gibbon [2104]
Had these sentiments been genuine, his voluntary abdication would have restored the peace of the empire, and his conscience would have been relieved by an act of justice. Palaeologus alone was responsible for his future government; and whatever might be his vices, they were surely less formidable than the calamities of a civil war, in which the Barbarians and infidels were again invited to assist the Greeks in their mutual destruction. By the arms of the Turks, who now struck a deep and everlasting root in Europe, Cantacuzene prevailed in the third contest in which he had been involved; and the young emperor, driven from the sea and land, was compelled to take shelter among the Latins of the Isle of Tenedos. His insolence and obstinacy provoked the victor to a step which must render the quarrel irreconcilable; and the association of his son Matthew, whom he invested with the purple, established the succession in the family of the Cantacuzeni. But Constantinople was still attached to the blood of her ancient princes; and this last injury accelerated the restoration of the rightful heir. A noble Genoese espoused the cause of Palaeologus, obtained a promise of his sister, and achieved the revolution with two galleys and two thousand five hundred auxiliaries. Under the pretence of distress, they were admitted into the lesser port; a gate was opened, and the Latin shout of, "Long life and victory to the emperor, John Palaeologus!" was answered by a general rising in his favor. A numerous and loyal party yet adhered to the standard of Cantacuzene: but he asserts in his history (does he hope for belief?) that his tender conscience rejected the assurance of conquest; that, in free obedience to the voice of religion and philosophy, he descended from the throne and embraced with pleasure the monastic habit and profession. ^36 So soon as he ceased to be a prince, his successor was not unwilling that he should be a saint: the remainder of his life was devoted to piety and learning; in the cells of Constantinople and Mount Athos, the monk Joasaph was respected as the temporal and spiritual father of the emperor; and if he issued from his retreat, it was as the minister of peace, to subdue the obstinacy, and solicit the pardon, of his rebellious son. ^37
[Footnote 34: From his return to Constantinople, Cantacuzene continues his history and that of the empire, one year beyond the abdication of his son Matthew, A.D. 1357, (l. iv. c. l - 50, p. 705 - 911.) Nicephorus Gregoras ends with the synod of Constantinople, in the year 1351, (l. xxii. c. 3, p. 660; the rest, to the conclusion of the xxivth book, p. 717, is all controversy;) and his fourteen last books are still Mss. in the king of France's library.]
[Footnote 35: The emperor (Cantacuzen. l. iv. c. 1) represents his own virtues, and Nic. Gregoras