Yes, Tissaia de Vries is well aware of Vilgefortz in the Witcher series. They have interacted on multiple occasions, with Tissaia even sharing crucial information with Vilgefortz. They've held meetings together and Vilgefortz has been described as considering Tissaia his equal partner.

Vilgefortz of Roggeveen (d. 1268) was a Kovirian mage and the de facto leader of the Chapter of the Gift and the Art, the highest ranked of the Brotherhood of Sorcerers. He also had a couple other personal apprentices in the form of Rience and Lydia van Bredevoort, with the latter acting as both his assistant and personal secretary. [1]

2023年7月27日 · Vilgefortz betrayed Tissaia and the other mages because he allied himself with Emperor Emhyr and the Nilfgaardians. He had ambitions of his own, and he believed that the only way to achieve his desires and aims in life was to join up with Emhyr, who had the power to give him what he wanted.

2023年7月28日 · Though Tissaia (MyAnna Buring) seems unaware of both Vilgefortz’s ill intentions and secret lover, the mage’s two-timing is what did him in: Geralt and Yennefer put the final piece in place...

2023年7月4日 · Will Tissaia join Vilgefortz? One of the reasons why some fans believe that Tissaia could be evil is the fact that she is romantically involved with Vilgefortz in ‘The Witcher.’ Of course, Vilgefortz wasn’t an evil man when we first met him.

In 'The Witcher' series, Vilgefortz and Tissaia share a complex relationship. Vilgefortz always considered Tissaia his equal partner. However, their relationship is strained when Vilgefortz acts against Tissaia's advice, seeing a potential to end all war.

2023年7月27日 · Why does Tissaia kill herself in 'The Witcher' Season 3? After being betrayed by her lover Vilgefortz, Tissaia feels partially responsible for the death and destruction of her fellow mages and Aretuza.

2023年6月29日 · In the Netflix series, Tissaia and Vilgefortz have fallen head over heels for each other. In the books, however, no such relationship exists between them. And that’s why one cannot completely rely on the information from the books to answer the question of Tissaia’s loyalty and intentions.

2023年6月29日 · Vilgefortz and Tissaia had been in a relationship since the events of The Witcher season 2. In The Witcher season 3, Yennefer even says that Tissaia is different now, and that she was happy that Tissaia and Vilgefortz were together.

2023年7月30日 · Tissaia's decision to take her own life in The Witcher Season 3, Part 2 is driven by her guilt over the Thanedd coup and her blindness to Vilgefortz's deception. Tissaia leaves a letter for Yennefer, expressing poignant sentiments and warnings about the consequences of using violent magic.