The Empress ending, explained\n\n By the end, Franz' mother Archduchess Sophie suggests that Elisabeth should leave Vienna to go back home to Bavaria and have her marriage to Franz annulled. Either that, or stay in the palace and conform. Elisabeth then discovers that she's pregnant.
The series is, in fact, based on a true story. The Empress follows the life of Elisabeth Sisi von Wittelsbach, Princess of Bavaria.