Frédéric Chopin's Waltz No. 19 in A minor, B. 150, KK IVb/11, P. 2/11, is a waltz for solo piano. The waltz was written sometime between 1843 and 1848, but was not published until 1860, after the composer's death, by Jacques Maho. At this time, it was attributed to Charlotte de Rothschild and was published as No. 3 of "Four pieces for piano". This collection also included Chopin's Nocturne in C minor, B. 108. It was not until 1955, 95 years after its initial publishing, that it was correctly attributed to Chopin.