Was from Chult(The Lost City of Mezero) Probably dead mother of Xandala Cimber and Valindra Cimber, wife of Artus Cimber.
Weirdly, despite the pointy ears Alisandra Cimber and her daughts are not half elves. It’s suspected this is due to her magical connection to Mezero changing her bodily form.
Because she’s abara, she’s imortal.