Grugariza was a mutant, a supporter of the NoHeads, and the daughter of Korolish.


Grugariza was born to the giant Korolish. Ever since her childhood, she was in favor of the NoHeads. She knew Amelia Vane, and called the celebrated jury a "troublemaker", believing that someone should teach her a lesson. Presumably, Grugariza disliked Vane due to her unbiasedness and Grugariza's association with the NoHeads.