Esmeralda is the beautiful wife of Firelord Cassim and the mother of Avatar Aladdin.
Esm red dress

Esmeralda in her regular attire

About her

The queen, or "Firelady", of the Fire Nation, Esmeralda is a beautiful and powerful firebender. The daughter of local nobles Merlin and Sarai, she was friends with her future husband, Prince Cassim, from the time they were teens. She was her son Aladdin's firebending teacher.