The Fairy-Queen (Z.629) is a masque or semi-opera by Henry Purcell; a Restoration spectacular. It was first performed on 2 May 1692 at the Queen's Theatre, Dorset Garden, in London by the United Company. The libretto is an anonymous adaptation of William Shakespeare's wedding comedy A Midsummer Night's Dream. Presumably the author or at least co-author of the libretto is Thomas Betterton, the manager of Dorset Garden Theatre with whom Purcell worked regularly. This assumption is based on an analysis of Betterton's stage directions. A collaboration between several playwrights is also feasible. Choreography for the various dances was provided by Josias Priest, who also worked on Dioclesian and King Arthur, and who was associated with Dido and Aeneas. Purcell did not set any of Shakespeare's text to music; instead he composed music for short masques in every act but the first. The play itself was also slightly modernized in keeping with seventeenth-century dramatic conventions, but in the main the spoken text is as Shakespeare wrote it. The masques are related to the play metaphorically, rather than literally. Many critics have stated erroneously that they bear no relationship to the play, but recent scholarship has shown that the opera, which ends with a masque featuring Hymen, the god of marriage, was actually composed for the fifteenth wedding anniversary of William and Mary.