Geanakoplos D. J. Emperor Michael Palaeologus and the West, 1258–1282: A Study in Byzantine—Latin Relations. Cambridge, Mass., 1959.

Gfrorer A. F. Byzantinische Geschichten. Ed. J. B. Weiss. 3 vols. Graz, 1872–1827.

Gibbon E. The History of the Decline and Fall of the Roman Empire. 7 vols. Ed. J. B. Bury. London, 1896.

Gill J. The Council of Florence. Cambridge, 1959.

_____. John VIII Palaeologus: A Character Study. Originally published in Studi byzantini e neoellenici, Vol. 9. 1957. Reprinted in author’s collection, Personalities of the Council of Florence, and Other Essays. New York, 1964.

Giustiniani H. The History of Chios. Cambridge, 1943.

Godfrey J. The Unholy Crusade. Oxford, 1980.

Gordon C. D. The Age of Attila (trans. of contemporary sources). University of Michigan, 1966.

Grant M. The History of Rome. London, 1978.

Grégoire H. Etudes sur le 9e. Siècle. B. Vol. 8. 1933.