Eilonwy is a fictional character from The Chronicles of Prydain, a series of fantasy novels written by Lloyd Alexander. She is a young princess with a strong personality, known for her intelligence and bravery. Eilonwy possesses a magical item called the Bauble, which helps her see the truth and navigate challenges. In the story, Eilonwy becomes a key ally to the protagonist, Taran, as they embark on various adventures. Her character is notable for breaking traditional gender roles, showcasing both strength and vulnerability. Eilonwy's journey highlights themes of friendship, courage, and self-discovery throughout the series.