Giuseppe Verdi was a devout Catholic and often incorporated religious themes into his operas, such as 'Nabucco' and 'Aida'.

Parsifal is an opera by Richard Wagner that is based on the Arthurian legend.

Tosca is an opera by Giacomo Puccini that features a character named Tosca, who is a devout Catholic.

Don Giovanni is an opera by Wolfgang Amadeus Mozart that is based on the story of Don Juan.

Carmen is an opera by Georges Bizet that features a character named Carmen, who is a gypsy.

Salome is an opera by Richard Strauss that is based on the biblical story of Salome.

Oedipus Rex is an opera by Igor Stravinsky that is based on the Greek myth of Oedipus.

Wozzeck is an opera by Alban Berg that is based on the play 'Wozzeck' by Georg Büchner.

Curlew River is an opera by Benjamin Britten that is based on the biblical story of Abraham and Isaac.

Saint François d'Assise is an opera by Olivier Messiaen that is based on the life of Saint Francis of Assisi.

Donnerstag aus Licht is an opera by Karlheinz Stockhausen that is based on the biblical story of Moses.

Doctor Atomic is an opera by John Adams that is based on the life of President John Adams.

Satyagraha is an opera by Philip Glass that is based on the life of Mahatma Gandhi.

Kullervo is an opera by Kaija Saariaho that is based on the Finnish national epic, the 'Kalevala'.

Peony Pavilion is an opera by Tan Dun that is based on the Chinese folktale 'The Peony Pavilion'.