Thomas was born in London in 1118 of a family of merchants. After a good education he served as clerk to another burgess then entered the service of Archbishop Theobald of Canterbury. Thomas proved himself an excellent administrator and skilled diplomat. In 1155 he was appointed chancellor by King Henry II. For several years king and chancellor worked harmoniously together in mutual admiration and personal friendship. As a result, the king nominated Thomas as Archbishop of Canterbury to succeed Theobald in 1161. From the start there was friction with Thomas insisting on every privilege of the church. The conflict worsened until 1164 when Thomas fled to France. Encouraged by the Pope he pursued his arguments from exile, sending letters and pronouncing excommunications. Three efforts at mediation failed before an apparent reconciliation brought him back triumphant to Canterbury in 1170. But the nobility still opposed him, and words of anger at court led four knights to journey to Canterbury where they finally chased Thomas into the cathedral, and murdered him on this day in the year 1170. Thomas was undoubtedly a proud and stubborn man, for all his gifts, and his personal austerities as archbishop were probably an attempt at self-discipline after years of ostentatious luxury. His conflict with King Henry stemmed from their equal personal ambitions, exacerbated by the increasingly international claims of the papacy, played out in the inevitable tension between Church and State.