Published here for the first time, The Gipsy Prince (Haymarket, 24 July 1801), was the collaboration of Thomas Moore who composed the libretto and lyrics and Michael Kelly who provided the musical score. Though it had the second longest run of Haymarket's summer season, the censoring authorities had not recognized the ploy of introducing the Irish under English rule as Gipsies during the Spanish Inquisition. Although the play could not be revived the following season, publisher John Roach supported Moore by publishing the hoaxing "source," a prose narrative from which Moore pretended to have derived his play. With an introduction by Frederick Burwick, this edition includes his transcription of the previously unpublished manuscript, the prose narrative ostensibly translated from the Spanish, the sheet music as published by Michael Kelly, recordings of the overture and songs as performed under the musical direction of Stephen Pu, and a variorum of the lyrics to facilitate side-by-side comparisons of all versions of the songs. The edition also provides page-by-page images of the original materials.