Who are famous composers from the Vienna Boys Choir?

The Vienna Boys Choir itself is a choir and not a collective of composers, but it has been associated with numerous famous composers throughout its history. Renowned figures like Wolfgang Amadeus Mozart, Franz Schubert, and Anton Bruckner have ties to the choir, either through their compositions or as former members. Additionally, the choir often performs works by composers such as Johann Strauss II and Gustav Mahler, reflecting its strong ties to the rich musical heritage of Vienna.