Part 8 of the Norse myth
The queen there invites him to dinner. He boasts about his fortune, and how he met a beautiful woman in a ring of fire who he plans to marry. Unfortunately, the queen laced his mead with a potion to make him forget about all that happened with Brunhild, the Valkyrie, and instead he would marry the queens daughter, the princess. When Sigurd wakes up the next morning, that is exactly what happens.

Years passed, and Sigurd felt something was wrong but he couldnโ€™t find out what. He used the gold fortune to buy a home for the princess and himself, and he had been living quietly for years. Eventually, the princesses brother asks for help from Sigurd to find someone he can marry. Sigurd faintly remembers a woman in a ring of fire hours away from the castle, and tells the brother he can lead him there. Once they arrive, the brother tries to ride through the flames with his horse, but he bucks him off. End of part 8