Syanna is a character from the video game series The Witcher, specifically featured in the expansion titled Blood and Wine. She is known for her complex personality and intricate backstory, which involves themes of betrayal and family dynamics. Syanna is the younger sister of Anna Henrietta, the ruler of the duchy of Toussaint. In the game, players encounter Syanna as they navigate a storyline filled with political intrigue and moral choices. Her character is often associated with the Doppler, a shape-shifting creature, and her actions significantly impact the game's outcome, making her a pivotal figure in the narrative.