Thérèse von Brunswick
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Thérèse von Brunsvik (1775 – 1861) was the eldest sister of the Brunsvik family.
She was one of Ludwig van Beethoven's students and to whom Beethoven dedicated the Piano Sonata No. 24 in F major, Opus 78, nicknamed "A Thérèse". She is also among the most plausible candidates for Beethoven's "Unsterbliche Geliebte" ("Immortal Beloved").