The nursery rhyme that inspired The Queen Was in the Parlour is listed as what number in the Roud Folk Song Index?
The Queen Was in the Parlour The Queen Was in the Parlour: a romance in three acts is a play by the English writer Noël Coward. Belonging to the Ruritanian romance genre, its title is drawn from a line in the nursery rhyme "Sing a Song of Sixpence". Although written in 1922, it was not produced until 24 August 1926, when it was premiered at the St Martin's Theatre.
Barbara Allen (song) "Barbara Allen" (Child 84, Roud 54) is a traditional Scottish ballad; it later travelled to America both orally and in print, where it became a popular folk song. Ethnomusicologists Steve Roud and Julia Bishop described it as "far and away the most widely collected song in the English language — equally popular in England, Scotland and Ireland, and with hundreds of versions collected over the years in North America."