After the reign of supreme kingdom, Snow White begin to feel like she's entitled to be the queen of everything. She slowly realize that her beauty captivates every subject, and she can use that for her personal gain. If everybody likes her, then she can ask everything from them.
Until one day, she discovers the dark arts of preserving youth, and it can only be demonstrated through a real subject. The magic requires her to find someone that loves her with his or her entire self, then reads the youth incantation, and decapitates the head of that very person. Only by then, she can get the energy to keep her young.
She decided to do this to her prince, and his head is finally decapitated. As a symbol of power, she put his husband's head on the side of her skirt.
Some people find her brave and a model queen. Henceforth, she became the charismatic cult leader with countless follower who's ready to give their life for her beauty.