Llywelyn, prince of north Wales, lived in the thirteenth century. One day he went out hunting and when he returned, his faithful Irish wolfhound, Gelert, covered in blood, was waiting to greet him. Puzzled, the prince ran to the cot of his baby son and found it empty but also blood-stained. In his grief, believing Gelert had killed his heir, the prince stabbed his sword into the dog's side. As the dog's dying cries rang out the prince heard another cry, this time of a baby. Looking around, he found his son unharmed lying next to the body of the wolf that Gelert had killed.
It's said the prince never smiled again.
You can see Gelert's grave in Beddgelert (meaning 'grave of Gelert'), a small village at the foot of Snowdon.
We took Elder Son and Daughter-in-law to visit Beddgelert. Elder Son needed to lay to rest the trauma he said he suffered as a result of me telling him the story of Gelert when he was just a small child.
I thought it was a good story; I didn't know he'd be traumatised by it!