Wolfgang Amadeus Mozart was a composer and the husband of Constanze Mozart. (AUDIO: A Requiem for the Doctor)
Biography
He was born in Salzburg. (PROSE: The Tramp's Story) According to K9 Mark II, he lived between 1756 and 1791. (AUDIO: Weapon of Choice)
Before Mozart learned to talk, Antonio Salieri, who travelled back in time, tried to throw the infant Mozart into the river. The Seventh Doctor talked Salieri out of it by explaining that Mozart was an integral part of the Web of Time and destroying him might destroy everything. (PROSE: The Tramp's Story)
In 1782, the Eighth Doctor and Sabbath attended the premiere of The Abduction from the Seraglio in Vienna. Rumours held that, during the after-opera soiree, Emperor Joseph II had told Mozart that the work had "too many notes". (PROSE: The Adventuress of Henrietta Street)
Mozart gave the Doctor brass binoculars with a handle as a gift for helping him with a haunted-mask problem. The Doctor could not find them after the premier of The Magic Flute. (PROSE: The Secret in Vault 13)
The First Doctor described Mozart as a "bad-mannered show-off with a silly hairstyle, who made a racket just to get attention". (PROSE: Time and Relative) The Eleventh Doctor once said that Mozart "hated cats". (COMIC: The Golden Ones) He later mentioned Mozart as one of humanity's finest minds who had been drawn to Prague. (COMIC: The Broken Man)
In an alternate timeline, Mozart was cured of his tuberculosis and given immortality by one of his clones from the far future. This resulted in his later work becoming increasingly mediocre as his inspiration ran out. This was part of the clone's revenge for the mistreatment of the Mozart clones in his own time after they became unfashionable. The Sixth Doctor and Evelyn Smythe, unaware of the change to history and only knowing Mozart as a hack, attended Mozart's 100th birthday in 1856, where they witnessed his failed suicide attempt. They learned of how this timeline had come into being and prevented it by visiting Mozart on his deathbed and persuading him not to make the deal with the clone. He also removed a dozen pages from Mozart's Requiem, leaving it unfinished so that the demand for Mozart clones would be lessened and they would be prized instead of mistreated. (AUDIO: My Own Private Wolfgang)
Legacy
In 1887, Sherlock Holmes went to Vienna to research his theory that many of Mozart's symphonies were plagiarized from obscure works by Orlando Lassus. (PROSE: All-Consuming Fire)
In expressing her dislike for a bad recording of Mozart's The Magic Flute, Romana II implied that K9 might be able to capture better recordings were he to go to Mozart's home town of Salzburg. (AUDIO: Weapon of Choice)
Behind the scenes
Mozart was played by Michael Sheen in the 1999 Broadway play Amadeus, alongside David Suchet's Antonio Salieri. He was also played by Aneurin Barnard in the 2017 film Interlude in Prague.