Diana

Diana, also known as Lady Winter, is the previous avatar of the Realm of Ice.

Personality
From what is seen, Diana was a proud and forceful woman with little patience for what annoyed her. She was deeply connected to her powers, enough to almost abandon her humanity to them, but Diana still respected the traditions of the Sky Maidens, and passed on the magic when her time came. Given that she chose her next life to be that of a future queen, it is possible that Diana had an appreciation for wealth and luxury.

Appearance
Like all Sky Maidens, Diana was almost inhumanly beautiful. She was tall, slender woman with very long, straight, white hair and blue eyes. As a winter spirit, Diana had light blue skin. It is likely that when she was still mostly human, she had a pale skintone, like Elsa.

She wore a heavy, white fur coat with a matching tall hat.

Powers and Abilities
As the Avatar of the Realm of Ice, Diana was born with the ability to create cold winds, snow and ice and manipulate them in various ways.

By the time of her passing, Diana had chosen to let her powers consume most of her humanity. This allowed her to command the elements of winter on a grander scale, such as creating snowstorms countries away with a mere thought.