| ||No one can have everything. Nobody is being born a sorcerer. And none should be born as one! After all, all the students should decide for themselves wheter they want to be sorceresses or mothers. I demand all the students to be sterilized. No exceptions.|| |
|- Tissaia de Vries, The Poisoned Source|
| || She opened the drawer in the dresser and took a short knife with a bone handle.
Her face was proud and fixed. Expressionless. It was quiet in the house. So quiet, the sound of a wilted petal falling on the tabletop could be heard. The sun, as red as blood, slowly sank below the roofs of the houses. Tissaia de Vries sat down on the chair by the table, blew out a candle, straightened the quill lying across the letter one more time and severed the arteries in both wrists.
|- pg(s). 236, Time of Contempt (UK edition)|
- De Vries' Extract is a potion that enables a witcher to see things that are hidden, whether they be behind a wall or spirits.
- An in-game book, Sorceresses and Sorcerers, mentions her sad end.
She is mentioned by Geralt as co-author of the compendium Masters of Magic on Curses – Selected Writings, with Margarita Laux-Antille.
- De Vries is a common Dutch surname meaning, essentially, the Frisian.
- 'Vries'' can also mean freeze