Question: Which country the director of film In The King Of Prussia is from?
Sentence (from "Princess Charlotte of Prussia (1831–1855)"): She was the eldest child and daughter of Prince Albert of Prussia( younger son of Frederick William III of Prussia and Louise of Mecklenburg- Strelitz) and his first wife Princess Marianne of the Netherlands( daughter of William I of the Netherlands and Wilhelmine of Prussia).
Relevant evidence: No