Complex sentence: Kaethe sings him a Nordic ballad about "Sir Olaf", who was abducted by the Queen of the Fairies, and his loyal wife Lady Hilda who waited for him for a hundred years, so that they could renew their love and die together.
Split into simpler sentences: Kaethe sings him a Nordic ballad about "Sir Olaf", who was abducted by the Queen of the Fairies. His loyal wife Lady Hilda who waited for him for a hundred years, so that they could renew their love and die together.