In this story, the king of Ireland comes to visit the king of Britain to ask for his sister's hand in marriage. This would have been fine, except the king's half-brother Efnysien exists. There's no happy ending for this one - by the end of the story, almost all of the named characters are dead.

WARNINGS. Animal cruelty: A character maims a large number of horses - I give verbal warning before this happens. Horrifying execution methods: in a story told by Matholowch, a group of people are trapped in an iron house which is heated up around them - only two escape. Domestic-ish violence: a king decides to punish his wife for the past actions of her family by making her work in the kitchens and get hit by a butcher every day. Graphically described gore: A character kills a bunch of hidden enemies by crushing their skulls with his bare hands - I give verbal warning before this happens. Murder of a child: A character throws his young nephew into a fire, shocking and distressing literally everyone - I give verbal warning before this happens.