The article focuses on the alleged affair between Wolfgang Amadeus Mozart (1756–1791) and Magdalena Hofdemel (nee Pokorny, 1766 – after 1804), a Czech pianist and violinist, which purportedly resulted in her becoming pregnant and giving birth to an illegitimate child.  onsequently, Magdalena’s husband, Franz Hofdemel (circa 1755–1791), a Viennese lawyer and court chancery clerk, out of jealousy, is said to have poisoned Mozart. This issue has long animated Mozart lovers. The community of writers on this topic can be divided into four groups. Some question the affair and thus Mozart’s poisoning. Conversely, others support the idea, with some even presenting intriguing additional information. Meanwhile, a third group argued that neither confirmation nor denial is possible, while some simply report the event without taking a stance. It can be said that the discussion presented in the article between supporters and opponents is often emotional, and evidence is generally not provided. It must be mphasized that there is no evidence for either the alleged affair or Mozart’s poisoning by Hofdemel.