|Helena Von Grossberg|
|Real Name:||Helena Von Grossberg|
|Alias:|| Helene Caroline Therese |
Duchess Helene in Bavaria
|Birth:||4 April 1834|
|Originally From:||Vienna, Austria|
General Von Grossberg (Father)
|First appearance:||An Imperial Surprise|
|Voiced by:||Elisabeth Fargeot|
- In real life Sisi had an older sister named Helene who was supposed to be betrothed to Emperor Franz Joseph as desired by Archduchess Sophie, however upon laying eyes on Sisi, Franz Joseph feel madly in love with her and demanded to marry her over Helene.
- Helena frequently refers to Sisi as a peasant. In fact, Sisi was the grand-daughter of the King of Bavaria and her mother Ludovika was actually the sister of Archduchess Sophie of Austria (Empress Sophia in the series). Therefore Sisi was the cousin of Franz and of much higher rank than the Viscountess Helena.
- Sisi's sister Helene, who was likely the inspiration for the character of Helena, did eventually find a husband following rejection by Franz Joseph. She married the Prince of Thrun and Taxis and arguably had the only happy marriage of any of her sisters.