In order to give his dynasty more credibility, Henry tries to arrange a marriage between his son and the Spanish princess, but their are preconditions. The Shadow of the Tower is a historical drama that was broadcast on BBC2 in 1972. It was a prequel to the earlier serials The Six Wives of Henry VIII and Elizabeth R and featured several actors who had appeared in them (but in new roles). Consisting of thirteen episodes, it focused on the reign of Henry VII of England and the creation of the Tudor dynasty.