Eliza was the sister of Baron Freixenet of Hamm and the beautiful but gullible wife of King Ervyll. After her brother was cursed and turned into a cormorant, she tried in vain to lift it, including one charlatan's idea that a shirt made of nettles would cure him. Needless to say, it didn't work, but luckily Geralt was passing through and her husband was willing to pay the witcher to lift the curse. However, after it was successfully lifted, the story spread far and wide and heavily embellished certain elements, ultimately claiming her shirt did work.
In 1262, she was suffering from tuberculosis which subsequently reduced her lifespan and wasn't expected to live much longer.
- It's never made clear if she's Kistrin's mother or not.