What Happened to the Four Knights After the Murder of Thomas Becket?

The murder of Thomas Becket, Archbishop of Canterbury, on 29 December 1170 remains one of the most dramatic and influential events in medieval English history. Four knights—Reginald FitzUrse, Hugh de Morville, William de Tracy, and Richard le Breton—entered Canterbury Cathedral and killed Becket before the altar during evening prayers. The murder shocked Christian Europe because it combined political violence with religious sacrilege. While Becket became a saint and martyr, the four knights became enduring symbols of violence, disobedience, and sacrilege. This paper examines the historical background to the murder, the biographies of the four knights, their role in Becket’s death, the reaction of medieval Europe, their punishment, exile, and long-term historical legacy. It argues that the fate of the knights reveals important aspects of medieval religion, aristocratic culture, justice, kingship, and the relationship between Church and Crown.