A stranger approached Wolfgang Amadeus Mozart in July 1791. He wanted Mozart to write a Requiem for a patron and to finish it as quickly as possible. Mozart never finished it. On December 5, he died. Some people think he was poisoned.

The patron was named Count Franz von Walsegg. The Count wanted to pass off Mozart’s work as his own, in memory of his recently deceased wife. In other words, he hired one of the greatest composers in history as a ghostwriter of music. Mozart’s students, Franz Xaver Süssmayr and Joseph Eybler, finished the work. Walsegg made a partial payment to Mozart; it isn’t clear whether he paid for the completion. The condition of secrecy had been thoroughly ruined by that point.
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