In 1052 during his Christmas Court King Edward "Confessor" of England (age 49) ordered the killing of Rhys ap Rhydderch in reprisal for his raiding of England. The chronicle of Florence of Worcester recorded a bit more information, stating that Rhys was killed at "Bulendun", which may be Bullen's Bank near Clyro in Radnorshire.

On 05 Jan 1053 the head of Rhys ap Rhydderch was brought before King Edward "Confessor" of England (age 50).