Maciej Kamienski
Born: 13th October 1734, Sopron, Hungary
Died: 25th January 1831, Warsaw, Poland
Nationality: Polish
Maciej Kamieński was a Polish classical composer of Slovak origin.
He studied music in Sopronm, where his patron was Count Henckl von Donnersmarck. After his death (1760), Kamieński moved to Vienna to continue his education. There in 1762, he heard young Mozart play. He visited Warsaw for the first time in 1773: this year the publishing house of J. Engel issued some harpsichord works by Kamieński (today lost).
Read more at https://en.wikipedia.org/wiki/Maciej_Kamieński