"The Friar and the Nun", also known as "Wiltshire Wedding", "The London 'Prentice", "All in/on a Misty Mornin", "Beggar Got a Beadle" is an English country dance tune in cut time and D Major.
The tune appears in Playford's English Dancing Master (1650), Musick's Delight on the Cithren (1666), Pills to Purge Melancholy and many ballad operas, including John Gay's Beggar's Opera (1728) (where it appears under the title "All in a Misty Morning," which is the first line of a song called "The Wiltshire Wedding"). John Walsh published it in all editions of his Complete Country Dancing-Master (1718, 1731, 1754).
The ballad "The Friar and the Nun" dates back at least to 1542, where it is alluded to in Archbishop Udal's translation of the Apophthegmes of Erasmus. Versions of the melody were also quite popular in Ireland, especially with the old harpers and their audiences. Variations were set by the famous harper Lyons in 1698, according to the collector Edward Bunting, who himself had the tune from one of the last of the ancient harpers, a man named Hempson, in 1796.
It was printed Barlow's Complete Country Dances from Playford's Dancing Master (1985), Chappell's Popular Music of the Olden Time vol. 1 (1859), Raven's English Country Dance Tunes (1984). Sharp's Country Dance Tunes (1909), Walsh's Complete Country Dancing-Master, Volume the Fourth (1740).