"O Come, All Ye Faithful", also known as "Adeste Fideles", is a Christmas carol that has been attributed to various authors, including John Francis Wade (1711–1786), John Reading (1645–1692), King John IV of Portugal (1604–1656), and anonymous Cistercian monks. The earliest printed version is in a book published by Wade.[1][2][3] A manuscript by Wade, dating to 1751, is held by Stonyhurst College in Lancashire.[4] The original four verses of the hymn were extended to a total of eight, and these have been translated into many languages. In 1841, the English Catholic priest Frederick Oakeley translated the hymn into English as "O Come All Ye Faithful", which became widespread in English-speaking countries.[2][5]