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.
Barbara Blida Barbara Blida (3 December 1949 – 25 April 2007) was a Polish political figure who served in the nation's Parliament (Sejm) for 16 years (1989–2005), including a stint as a member of the cabinet, and whose suicide in the midst of an investigation for corruption became front-page news in Poland as well as in a number of news outlets around the world.