History of the Jews in England--The Expulsion

In 1290, King Edward I issued an edict expelling all Jews from England. The expulsion edict remained in force for the rest of the Middle Ages. The edict was not an isolated incident, but the culmination of over 200 years of increased persecution. Oliver Cromwell permitted Jews to return to England in 1657, over 360 years after their banishment by Edward I.

The first Jewish communities of significant size came to England with William the Conqueror in 1066. On the conquest of England, William instituted a feudal system in the country, whereby all estates formally belonged to the Crown; the king then appointed lords over these vast estates, but they were subject to duties and obligations (financial and military) to the king. Under the lords were further subjects such as serfs, who were bound and obliged to their lords, and their lords' obligations. Merchants had a special status in the system as did Jews. Jews were declared to be direct subjects of the King, unlike the rest of the population. This was an ambivalent legal position for the Jewish population, in that they were not tied to any particular lord, but were subject to the whims of the king. This could at times prove advantageous and at other times disadvantageous. Every successive king formally reviewed a royal charter granting Jews the right to remain in England. Jews did not enjoy any of the guarantees of the Magna Carta of 1215.

Economically, Jews played a key role in the country. The church at the time strictly forbade the lending of money for profit. This created a vacuum in the economy of Europe that Jews filled due to extreme discrimination in every other economic area. Canon law was not considered applicable to Jews, and Judaism does not forbid loans with interest between Jews and non-Jews. In consequence, some Jews made large amounts of money. Taking advantage of their unique status as his direct subjects, the King could appropriate Jewish assets in the form of taxation. He levied heavy taxes on Jews at will without having to summon Parliament.

...
Wikipedia