The game is based on a true story – a story of kings, heirs, a kingdom, castle sieges and bloody battles. The King is dead and his eldest son Wenceslas IV becomes the new King of Bohemia.
Was there a question?
Historical fiction. The larger history is correct, including the sack of Skalitz and the existence of the main characters in the story. If you read the entries you get a really nice history lesson.
Henry is fictional. The quest stories are fictional. Many of the detailed actions of the historical characters are fictional.