Born an orphan, she was taken away from her orphanage as a baby, and was made into the next heir to the throne by an evil King and Queen (they could not make a child, and they sense strong magic potential from her). At a ritual, they embedded a cursed gem into her, giving her increased levels of dark magic, and forcing her into becoming an alicorn.
She grew up to be a pony that doesn't really shoow her emotions much, growing up with no friends and coming across as very cold, however she knew that what her family was doing was not right, and when she was 18, she escaped from her castle and went into hiding.
she still comes across as being cold and indifferent towards a lot of ponies, but on the inside she does actually care, she just has a really bad way of showing her emotions along with not having any friends lmao. She also was raised to not show any weaknesses as well, keeping them all bottled up.
Despite this, she is actually a softie deep down, and anyone who i able to make her give a genuine laugh is able t win over her heart and friendship :3