A commonly used version of a work; or the common form of a language (i.e. vernacular prose). In textual criticism, the vulgate is the version of a text most commonly used, as distinct from its most accurate version. The Vulgate is a version of the Bible in Latin, translated mainly by St Jerome in the late 14th century, and later adapted as the authorized Roman Catholic text. The Vulgate Cycle of chivalric romances is a group of 13th-century French prose works dealing with King Arthur and his knights; it includes the accounts of the quest for the Holy Grail and of Arthur's death upon which Thomas Malory based his Le Morte Darthur (1485).