Home › Authors › Catholic Church. Pope (1370-1378 : Gregory XI) 👤 Catholic Church. Pope (1370-1378 : Gregory XI) 3 books Books by Catholic Church. Pope (1370-1378 : Gregory XI) Grégoire XI, 1370-1378 Grégoire XI, 1370-1378 1992 Acta Gregorii XI, pontificis R Acta Gregorii XI, pontificis Romani 1949 Lettres secrètes & curiales du Lettres secrètes & curiales du pape Gregoire XI (1370-1378) relatives à la France 1935