Julian (or Jules) Fontana (31 July 181023 December 1869) was a Polish pianist, composer, lawyer, author, translator, and entrepreneur, best remembered as a close friend and musical executor of Polish composer Frédéric Chopin. Life Born in Warsaw to a family of Italian origin, Fontana studied law at the University of Warsaw and music under Józef Elsner at the conservatory, where he met Chopin. Fontana left Warsaw in 1831, after the November Uprising and settled in Hamburg, before becoming a pianist and teacher in Paris in 1832. In 1835 in London he participated in a concert with music played by 6 pianists, the others including Ignaz Moscheles, Johann Baptist Cramer and Charles-Valentin Alkan. From 1836 to 1838 he lived together with Chopin in his apartment on Chaussée-d'Antin no. 38. In 1840, Chopin dedicated his 2 Polonaises, Op. 40, to Fontana. These included the "Military Polonaise" in A major. He took up a wandering life that included: England and France (1833–1837); Havana, Cuba (1844–45): On 8 July 1844 he played the music of Chopin for the first time in Cuba. His pupils there included Nicolás Ruiz Espadero. New York (1845–51): he gave concerts with Camillo Sivori; Montgeron, Paris (1852) – becoming part of the literary scene and friends with Adam Mickiewicz. In New York, on 9 September 1850, Fontana married Camilla Dalcour Tennant (1818–1855), widow of Stephen Cattley Tennant (1800–1848), a merchant, and mother of Enriqueta Augustina Tennant (1843–1908) and four other children. Their son Julian Camillo Adam Fontana was born in Paris on 10 July 1853. Camilla died on 30 March 1855 of pneumonia, while pregnant with her 7th child. Fontana took her children from her first marriage to be looked after by her first husband's family in England. He then returned to New York, where he was naturalised an American citizen on 7 September the same year. Also in 1855 he published a collection of Chopin's unpublished manuscripts, under the opus numbers 66–73. He also considered publishing more private details concerning Chopin:"I would have as much to say about the man as about the artist [Chopin]. And when his profound diplomacy, allied to his extraordinary wit, concealed from the world what was not a secret to me, who lived with him for almost thirty years in confidence; on raising the veil, I would show him not entirely as general opinion wishes to have him;" (Julian Fontana to Stanisław Egbert Koźmian,