Christmas 1175, Abergavenny Castle. The Anglo-Norman in charge, one William de Braose (there were many of them all very inventively called William), invited Seisyllt ap Dyfnwall from nearby Castell Arnallt around for a Christmas meal. Seisyllt, his son Geoffrey and the chieftains of Powys accepted the invitation. The intention, so William said in his politely worded invite, was to spend Christmas in each other’s company- to bury the hatchet. They would feast and celebrate and make a lasting reconciliation following the death of Henry Fitzmiles- an event incidentally that had ensured vast tracts of lands were now in de Braose’s ownership.

And what could be nicer at Christmas than peace and reconciliation? The Welsh left their weapons at the door and settled down for an evening of serious eating and drinking.

They didn’t notice when someone quietly shut and barred the entrance to the great hall. De Braose’s men were intent on burying the hatchet…firmly in the backs of their Welsh guests. They finished the evening by cutting down all the Welsh in the hall. De Braose even murdered Seisyllt’s seven-year-old son.

The fact is that Henry Fitzmiles was William’s uncle. His death at the hands of the Welsh triggered the massacre, another round in an on-going blood feud. What made the massacre at Abbergavenny different was that de Braose broke the unwritten laws of hospitality. Camden, writing in the sixteenth century described the act as one of “infamy and treachery.”