from Wikipedia:
Sigismond Stojowski (Zygmunt Stojowski; b. March 27-Jul. / April 8, 1870greg. in Strzelce near Kielce; other possible birth dates are May 2 or 14 of 1863, 1869, 1871, or 1876; † November 5, 1946 in New York) was a Polish pianist and composer.
Stojowski was a pupil of Władysław Żeleński (1837-1921) in Cracow. In 1887 he went to Paris, where he studied at the Conservatoire with Louis Diémer, Léo Delibes and Théodore Dubois. He also studied philosophy, history and literature at the Sorbonne. From 1891 he took piano lessons with Ignatz Paderewski.
Stojowski's international career as a composer and pianist began with a concert at the Salle Erard in Paris in 1891, where he performed his first piano concerto under Benjamin Godard. He subsequently performed with the most important orchestras in Germany and England, where his works were also performed with great success. His ''D-minor Symphony''won first prize at the 1898 Paderewski International Competition in Leipzig, and the ''''Fantazja Polska won second prize at the Maurycy Zamoyski Competition. Both Brahms and Tchaikovsky expressed their appreciation of his compositions.
At the end of 1905 he moved to the USA, where he also made a name for himself as a pianist in a very short time. As early as 1906, he performed Saint-Saëns' 4th Piano Concerto with the New York Symphony Orchestra under Frank Damrosch at Carnegie Hall. In addition to his extensive concert activities, Stojowski was always active as a teacher: until 1911 at the Institute of Musical Art (which later became the Juilliard School of Music), then until 1918 at the Von Ende School of Music. In addition, he gave summer courses and master classes in numerous cities in the USA, but also in Canada and South America, and from 1940 also at the Juilliard School. His best-known students were Aleksander Brachocki, Antonia Brico, Phyllida Ashley, Oscar Levant, Mischa Levitzki, Arthur Loesser, Alfred Newman, Guiomar Novaes, Harriet Ware and Luisa Mathilde Moralès-Macedo.
Stojowski composed a symphony, a violin concerto and two piano concertos, a rhapsodie symphonique for piano and orchestra, a concert piece for cello and orchestra, two cantatas, numerous piano pieces, chamber music works and songs.

Note: translated from the German version of Wikipedia into English