Cirilla Fiona Elen Riannon, commonly known as Ciri, is a central character in the fantasy series The Witcher. She is the adopted daughter of Geralt of Rivia and Yennefer of Vengerberg. Ciri is of royal lineage, being the sole princess of Cintra, and possesses the Elder Blood, granting her extraordinary magical abilities. Her character is essential to the overarching narrative as she is pursued by various factions due to her powers. Ciri's journey is one of self-discovery and survival as she learns to harness her abilities and navigate the complex world around her.