European folklore is full of crossover.
Stories with the same themes, heroes and villains told across the continent for centuries. Are they all just myth and legends? Or do some have an aspect of historical credibility?
The new BBC Sounds programme The Mystery Of…The Lady With The Ring explores one such tale.
The Lady With The Ring is told in Germany, Scandinavia and beyond, with a slight change in detail in each place. And each claiming to be the country of the story’s true origin.
But what if they're all mistaken? What if the real inspiration actually came from Lurgan in County Armagh more than 300 years ago?
The Mystery Of…The Lady With The Ring will be available on BBC Sounds on Saturday 4 January, and also broadcast on BBC Radio Ulster at 1.30pm.