Théoden is a fictional character from J.R.R. Tolkien's epic fantasy novel, The Lord of the Rings. He is the King of Rohan, a kingdom known for its horsemen and vast plains. Initially, Théoden is portrayed as a weakened ruler, influenced by the treacherous Gríma Wormtongue, but he eventually regains his strength and courage. As a leader, Théoden plays a crucial role in the fight against the dark forces of Sauron. He rallies his people to defend their land and allies with Aragorn, Gimli, and Legolas in the battle for Middle-earth. His character symbolizes bravery, resilience, and the importance of unity in times of crisis.