Question: Who is a Polish politician that was also famous for performing Piano Concerto No. 4 by Anton Rubinstein?
Sentence (from "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.
Relevant evidence: Yes