Frédéric Chopin composed three piano sonatas, two of which were published in his lifetime, one posthumously.
They are considered to be among Chopin's most difficult piano compositions both musically and technically.
Despite having a low opus number, this work was published posthumously in 1851 by Tobias Haslinger's son.
However, the third movement, the widely known and popular funeral march, had been composed as early as 1837.
Chopin composed this sonata in 1844 and dedicated it to Countess Emilie de Perthuis.