Hi, Leeneia - I think Kat's right. You're probably talking about Sissi --- Elisabeth of Austria-Hungary (24 December 1837 – 10 September 1898). Wikipedia says she was Empress of Austria and Queen of Hungary, Croatia, and Bohemia as spouse of Emperor Francis Joseph I. From an early age, she was called "Sisi" by family and friends.

When I was in Budapest, I got the impression from our tour guide that she lived much of her adult life in Budapest and that she was wildly popular there. Romy Schneider starred in three "Sissi" films directed by Ernst Marischka.

-Joe-