Who is a Polish politician that was also famous for performing Piano Concerto No. 4 by Anton Rubinstein?
Ignacy Jan Paderewski Ignacy Jan Paderewski, GBE (] ; 18 November [O.S. 6 November] 1860  – 29 June 1941) was a Polish pianist and composer, politician and spokesman for Polish independence. He was a favorite of concert audiences around the world. His musical fame opened access to diplomacy and the media.
Michał Kazimierz Ogiński Prince Michał Kazimierz Ogiński (ca. 1730, Warsaw – 1800, Słonim or Warsaw) of Oginiec was a Polish nobleman, a political office holder and a military commander in the Grand Duchy of Lithuania (then part of the Polish–Lithuanian Commonwealth), as well as a noted musician and composer.