Tempest is Elisabeth/Sissi's horse. Her father Duke Max brought it back for her after one of his secret missions.
After finding out that The Orphanage needs money Sissi decides to run in a horse race to win the needed money. She is first denied by Empress Sophia, however Prince Karl is injured so Sissi must represent The Palace. Count Arkas then steals Tempest in order to increase his odds. However, Sissi manages to find him. 
- Tempest means "turbulent wind" in German.