Unsterbliche Geliebte
In the film "Immortal Beloved", starring Gary Oldman as Ludwig van Beethoven, actor Marco Hofschneider portrays his nephew. The premise of the film's title concentrates on a ten-page letter that Ludwig van Beethoven wrote to an anonymous recipient: an "Immortal Beloved". Although most facts within the film are historically correct, the final presentation of the letter to Ludwig's sister-in-law, Johanna (Karl's mother), suggests that she is his true love, which scholars have never presented as a plausible theory.