Snow Queen (Knights of Fables)

The Snow Queen is a powerful sorceress and the ruler of winter and all that is cold. The younger sister of the White Witch, a former princess from the World of Charn, and the paternal ancestor of Queen Elsa and Princess Anna.

Chronicles of Narnia
The Snow Queen was the younger sister of Princess Jadis. She was known to be a clever witch, just as her sister was, though not as powerful as Jadis. After Jadis' ascension to the throne, the princess chose to challenge her in a power struggle. Both sides agreed to a use of no magic, and proceeded to go to war. Jadis claimed that her sister broke the promise that neither of them would use magic, but there's no way to verify this. Jadis was hardly trustworthy, yet it is known that all of Jadis' family and race were said to be cruel people. So Jadis' sister may have been just as bad as she was.

In spite of Jadis' advantages, her sister's armies had the upper hand in the last battles. Fighting in the great city of Charn itself, the two armies butchered one another until the princess and her officers were able to reach the royal palace where Jadis was stationed.

"Victory" was the princess' last word, spoken to Jadis. Even as she and her forces overwhelmed Jadis', her elder sister also chose to break their pact, and call on the power of the Deplorable Word to destroy not only her enemies, but all her own forces as well. Within minutes of entering the palace, the princess and all the armies had died. Jadis was left the empress and sole living resident of the whole world of Charn.

The Snow Queen
Not dead, but transported to the realm of Fantasia. She went far to the North, where she secretly plotted against the king of the Northern Woodlands, whom she had befriended by granting him wishes and making prophecies. She overthrew the king and established a new kingdom. She turned the formerly green farmlands of the North into a frozen wasteland, had a new fortress-like palace built for herself, and became known as the Snow Queen, and she conquered numerous kingdoms, and her empire grew ever larger.

She was eventually overthrown by Wise Prince White, and banished to the Northern Mountains, where she lives in an icy lair with her polar bears. Following her banishment a series of civil wars tore apart hers empire apart, resulting in the establishment of several states ruled by the Snow Queen's surviving generals and heirs. Her own son inherited a kingdom, and became King Harald of Arendelle. Every now and then, she sends a blizzard to let the people know that she is still there.