"Culhwch and Olwen" is a medieval Welsh tale that is part of the collection known as the Mabinogion. It follows the story of Culhwch, a young man who is cursed to never marry unless he can win the hand of Olwen, the daughter of the giant Ysbaddaden Bencawr. To achieve this, Culhwch embarks on a series of adventures and challenges, seeking the help of various heroes from Arthurian legend. The narrative is rich with elements of mythology and folklore, showcasing the importance of chivalry and bravery. Throughout his quest, Culhwch encounters numerous characters, including King Arthur and his knights, who assist him in overcoming obstacles. The story highlights themes of love, destiny, and the interplay between humans and the supernatural.