Flashpoint Supergirl
In the Flashpoint alternate reality, Kara Zor El was born on Argo City, a utopian society that floated in the sky above the ravaged Earth. When Kara was 13, her city was attacked by the ruthless tyrant, Aquaman, who sought to conquer the last remaining safe haven on the planet. Kara's parents, fearing for her safety, sent her to Earth to live with her cousin, Superman.