Question: What Polish pianist and composer has his heart preserved at National Shrine of Our Lady of Czestochowa?
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