[Doctor Stochastic]

As Beethoven had only three brothers (no sisters), the posted article must not have been very well researched.

[Doctor Stochastic]

Correction: Beethoven's family

Ludwig Maria (died after 6 days)
Ludwig
Kasper Karl
Johann
Anna Maira Franzika (died after 2 days)
Franz Gerog (lived only two years)
Maria Margaretha Josepha (lived only 1-2 years)

No mention of sibling blindness in the Beethoven biography.