Question: What is the date of death of Prince Wolfgang Of Hesse's father?
Sentence (from "Prince Wolfgang of Hesse"): Wolfgang would have been his father's heir as King of Finland instead of his elder twin Prince Philipp of Hesse (1896–1980), apparently because Wolfgang was with his parents in 1918 and ready to travel to Finland (where a wedding to a Finnish lady was reportedly being prepared for the coming Crown Prince).
Relevant evidence: No