The nursery rhyme that inspired The Queen Was in the Parlour is listed as what number in the Roud Folk Song Index?
Sing a Song of Sixpence "Sing a Song of Sixpence" is a well-known English nursery rhyme, perhaps originating in the 18th century. It is listed in the Roud Folk Song Index as number 13191.
Riddles Wisely Expounded "Riddles Wisely Expounded" is a traditional English song, dating at least to 1450. It is Child Ballad 1 and Roud 161, and exists in several variants. The first known tune was attached to it in 1719.