Question: Who was the maternal grandfather of Prince Carl Bernadotte?
Sentence (from "Prince Carl Bernadotte"): Carl Gustaf Oscar Fredrik Christian, Prince Bernadotte (10 January 1911 – 27 June 2003), originally Prince Carl, Duke of Östergötland, was the youngest child and only son of Prince Carl of Sweden and Princess Ingeborg of Denmark and eventually a prince of the Belgian nobility.
Relevant evidence: Yes