Izumi

Fire Lord Izumi is a character from the Avatar Universe in The Legend of Korra.

She is the current Fire Lord, daughter of Zuko, mother of General Iroh, niece of Azula, grandaughter of Ozai and Ursa, great-grandaughter of Azulon, and great-great-grandaughter of Sozin as well as Avatar Roku.

Fire Rebellion
Izumi was forced to flea to Russia after the Coalition formed and threatened to kill her. She safely returned to the Fire Nation after the Didact's defeat.

She's also the new leader of the Order of the Just after Princess Luna gained full leadership of the Multi-Universal United Government.