Edith Mathis is a Swiss soprano and a leading exponent of the works of Wolfgang Amadeus Mozart worldwide. She is known for parts in Mozart operas, but also took part in premieres of operas such as Henze's Der junge Lord.

Der junge Lord is an opera in two acts by Hans Werner Henze to a German libretto by Ingeborg Bachmann, after Wilhelm Hauff's 1827 fairy tale "Der Affe als Mensch" from Der Scheik von Alessandria und seine Sklaven.