See Acta Sti. Silvestri, and Hist. Eccles. Nicephor. Callist. l. vii. c. 34, ap. Baronium Annal. Eccles. A.D. 324, No. 67, 74. Such evidence is contemptible enough; but these circumstances are in themselves so probable, that the learned Dr. Howell (History of the World, vol. iii. p. 14) has not scrupled to adopt them.