The Norman invasion and conquest of England in 1066, led by Duke William "the Conqueror," is well-known in British history; less well-known is the fact that the conquest caused a group of Norman Jews to immigrate to England. These immigrants were the first significant population of Jews to ever reside in England, and by about 1100, distinct communities of Jews had established themselves in several cities throughout the country. However, Jewish life in England came to an abrupt end less than two-hundred and thirty years after its beginning when King Edward I expelled the entire Jewish population from England in 1290. The edict of expulsion was approved by the English parliament on June 18, 1290, and there are no surviving records of what happened in that meeting or why Edward decided to banish the Jews. Accordingly, there are a host of questions that need answering if one is to propose a explanation. For example, what could compel Edward I, who struggled financially and was deeply in debt for the duration of his reign, to expel the people who had been the crown's greatest asset for two centuries? Why did the king break the charter which specifically placed the Jews under the monarchy's protection? Why was the aristocracy so intent on getting rid of the Jews who, on several occasions, kept the baronies financially afloat through generous loans? My goal in writing this thesis is threefold: first, to provide a concise but clear account of this extraordinarily specific section of history; second, to present the information in such a way that those who read it might be convinced that the Expulsion was, in fact, primarily motivated by financial factors; and third, to identify several structural and institutional factors which were critical to the Jews' experiences in medieval England.