A princess from a corrupted kingdom where her whole family was slain except her since she is still a child. The "killers" aka the other kingdom decided she can live until her 18th birthday. She is taken in by the Duke who is kinda cold hut kind of not to her. The dutchess is a maid who her Count made his daughter switch places with her so that his daughter wouldn't have to become a dutchess. The princess is also a golem tamer but she just isn't aware of it- oh not to mention that this is a SUPER rare skill and the kingdom looks highly on those who can control their gifts.
The Baby Prisoner in the Winter Castle