A névtelen vár (1981)

After the outbreak of the French Revolution, the child Marie, daughter of Louis XVI, must flee France from the army of the republic. Her escape is aided by Count Vavel, who promised his father to protect her at all costs. They find refuge in a castle in Hungary, where they live isolated from everyone. The french police chief sends Thémire, the beautiful spy to track them down, who succeeds after four years of searching. But she cannot fulfill her task, as she falls in love with the count.