Mother Talizin was Night Mother on Dathomir during The Clone Wars. She was exeedingly powerful, able to torment and nearly kill Count Dooku with her Ichorcraft and Voodoo puppet.
Talizin was mother of Darth Maul and Savage Opress, Zabrak Night Brothers. She believed her sons woyke have great destinies.
Mother Talizin taught that the Dark Magick and The Dark Side were different.
She like many Nightsisters was slain during The Great Night Purge lead by General Grevious who impaled her on his lightsabers.