Ta’a Chume was the Queen Mother and ruler of the Hapes Consortium introduced in the Legends novel The Courtship of Princess Leia. She was also the grandmother of Tenel Ka Djo.
Ta’a Chume also appeared in a few Young Jedi Knights books, two The New Jedi Order books, and Dark Nest II: The Unseen Queen.
There are many revealing words used to describe Ta’a Chune on her Wookieepedia page: arrogant, ruthless, manipulative, and sociopath. So clearly she was a very memorable character.
Check out the entire list of women in 365 Days of Star Wars Women in the Women in Star Wars Index. It includes highlights from each post plus notes which posts include new 365 interviews with actresses, writers, artists, and more.