Mayerling is a ballet choreographed by Kenneth MacMillan to the music of Franz Liszt, arranged by John Lanchbery, scenario by Gillian Freeman and designed by Nicholas Georgiadis. The ballet is based on the Mayerling incident, a series of events surrounding the apparent murder–suicide of Rudolf, Crown Prince of Austria (21 August 1858 – 30 January 1889) and his lover, Baroness Mary Vetsera (19 March 1871 – 30 January 1889). The ballet premiered on 14 February 1978, at the Royal Opera House, danced by The Royal Ballet, with David Wall as Prince Rudolf and Lynn Seymour as Vetsera.