Éowyn is a fictional character from J.R.R. Tolkien's epic fantasy novel, The Lord of the Rings. She is a noblewoman of Rohan, known for her bravery and strong will. Éowyn is the niece of King Théoden and plays a crucial role in the story, particularly in the battle against the forces of Sauron. Éowyn disguises herself as a man to fight in the battle of Pelennor Fields, seeking to prove her worth and protect her homeland. She is famous for her confrontation with the Witch-king of Angmar, where she declares, "I am no man," showcasing her strength and determination in a male-dominated society.