Guido de Monte Rocherii, 1333-

"Guido de Monte Rochen or Guy de Montrocher was a Spanish priest and jurist who was active around 1331. He is best known as the author of Manipulus curatorum (the manual of the curate), a handbook for parish priests, that was often copied, with some 180 complete or partial manuscripts surviving, and later reprinted throughout Europe in the next 200 years, with at least 119 printings, and sales which have been estimated to be three times those of Thomas Aquinas' Summa Theologica. It became obsolete only when the Council of Trent created the Roman Catechism in 1566."