“Fidelio” (Leonore, or The Triumph of Married Love, Op. 72) is Ludwig van Beethoven’s only opera.
The setting is a political prison near Seville in the 18th century. The opera tells how the courageous Leonore, disguised as a prison guard named “Fidelio” searches for her husband Florestan who is wrongly imprisoned for his political beliefs. When Florestan’s execution is imminent, Leonore risks discovery and death for love, finally freeing her beloved from his chains and his fellow prisoners from oppression.

The pattern of the socks shows vertical lines like the prison bars in the opera, but if you look more closely you’ll see them forming X and Os , representing the final triumph of love over tyranny.

This is a delicate, feminine sock pattern. If you are searching for the more robust, unisex version, you’ll find it here: Fidelio

ERRATUM:
11/10/14: the instep charts startet at row 5 instead of row 1. a corrected version of the pattern (version 1.1.) has already been uploaded.