69. JACOBITARUM PATRIARCHA, a Latin version of a letter of Joannes, patriarch of the Egyptian Jacobites, to Pope Eugenius (A. D. 1431 to 1447), in reply to a letter of the Pope to him, is given in the Concilia,
vol. xiii. col. 1201, ed. Labbe; Cave, Hist. Litt.
vol. ii., Appendix,