Kamila Stösslová (née Neumannová; 1891–1935) holds an unusual place in music history. The composerLeoš Janáček, upon meeting her in 1917 in the resort town of Luhačovice, fell deeply in love with her, despite both their marriages and the fact he was almost forty years older than Kamila. She was a profound influence on the composer in his last decade.
Kamila was living in the Moravian spa town of Luhačovice with her husband David Stössel and their two sons Rudolf (born 1913) and Otto (born 1916). David was in the army and assisted Janáček in obtaining vital food supplies in wartime. Probably David Stössel's army service meant he could only be at Luhačovice only on some days, thus giving Janáček opportunities to walk and converse with Kamila during that first week. Janáček arrived in the resort on 3 July 1917 (he preferred Luhačovice over other spas due to its proximity to his house in Brno). By 8 July he had jotted down a fragment of her speech in his diary. His correspondence with Kamila had begun with a brief note by 24 July 1917.
While many of these works reveal a realization that the composer's love for her was unrequited, she was nonetheless the subject of intense correspondence. There are over 700 letters (and the aforementioned string quartet which was inspired by them) that bear witness to his intense obsession with this young woman. Although she always remained emotionally aloof, she was with him when he died in 1928. During the final year of his life, he wrote to Kamila almost every day.