Sources:
– [University of Bonn — Beethoven genome press release](https://www.uni-bonn.de/en/news/beethoven2019s-genome-offers-clues-to-composer2019s-health-and-family-history-1)
– [Washington Post / Genomes2People PDF](https://www.genomes2people.org/wp-content/uploads/2023/03/Beethovens-DNA-decoded-from-locks-of-hair-saved-by-his-fans-The-Washington-Post.pdf)
– [Popular Beethoven — Famous locks](https://popularbeethoven.com/?p=2397)
– [World History Encyclopedia — Ludwig van Beethoven](https://www.worldhistory.org/Ludwig_van_Beethoven/)
– [Interlude.hk — Beethoven deafness](https://interlude.hk/ludwig-von-beethoven-the-sounds-of-silence-the-cause-of-beethoven-hearing-loss-and-series-of-treatment/)
– [ADLM — 2024 lead study press release](https://myadlm.org/media/press-release-archive/2024/05-may/new-research-confirms-beethoven-was-not-killed-by-lead-poisoning)
– [The Brighter Side — 2023 DNA coverage](https://thebrighterside.news/post/dna-analysis-of-beethovens-hair-reveals-200-year-old-secrets)
– [ABC17 / CNN Style — 2023 DNA coverage](https://abc17news.com/entertainment/cnn-style/2023/03/22/locks-of-beethovens-hair-reveal-secret-family-history-and-health-issues/)
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## Bonn to Vienna: The Journey That Defined the Composer
To understand Beethoven’s hair, his health, and his family’s biological history, it helps to understand where he came from and the particular social world that shaped him in his early years.
The city of Bonn in the last decades of the eighteenth century was a court city—a place defined by its relationship to the Archbishop-Elector of Cologne, who maintained a residence there and whose court employed musicians, artists, clerics, and functionaries in a miniature version of the cultural apparatus that larger European capitals operated on a grander scale. It was, by European standards, a modest city, but one with genuine musical life and a court that took music seriously. The grandfather Ludwig van Beethoven had risen to become its Kapellmeister—the top musical position available—and that achievement set a tone for what the family might aspire to.
The young Ludwig van Beethoven was born on December 16, 1770, into a household that was simultaneously socially connected and economically precarious. His father Johann was employed at the court but earned what biographers describe as a modest income, and the family’s finances were complicated by Johann’s drinking and unreliability. Ludwig’s mother, Maria Magdalena van Beethoven née Keverich, was the daughter of a chief cook who had worked in the palace kitchens—a connection to court life, but not to its upper echelons. She died in 1787 of what was likely tuberculosis, while her son was in Vienna on a brief trip to study with Mozart. She was not yet forty years old. Ludwig, who was seventeen, returned to Bonn upon learning of her illness and was with her family when she died.