William the Conqueror brought them to England because he had found that in Normandy they had been good for business; in particular they provided access to the silver of the Rhineland. The Jews of Rouen may also have helped to finance his invasion of England, in return for the chance to work in a country from which they had previously been barred. Another reason can be given for the favour they found with the king. Since Christians were not allowed to lend money at interest, some other group of merchants had to be created. The Jews became moneylenders by default, as it were, and as a result they were abused and despised in equal measure. But they did not only lend money; they were also moneychangers and goldsmiths. They exchanged plate for coin. They provided ready money, a commodity often in short supply.
The Norman kings of England, therefore, found them to be very useful. They could borrow from them but, more profitably, they could tax them. They could levy what were known as ‘tallages’, and succeeding kings were able to take between a third and a quarter of the Jews’ total wealth at any one time. As a result the Jews, in the twelfth century, were afforded royal protection. No Jew was allowed to become a citizen, or to hold land, but the neighbourhood of the Jewry was like the royal forests exempt from common law; the Jews were simply the king’s chattels, who owed their life and property wholly to him. They were granted the protection of the royal courts, and their bonds were placed in a special chamber of the royal palace at Westminster. A Jewish exchequer was established there, with its own clerks and justices.
In return for royal favour the Jews brought energy and prosperity to the business of the realm; their loans helped to make possible the great feats of Norman architecture, and the unique stone houses of Lincoln and Bury St Edmunds are credited to them. Jacob le Toruk had a grand stone house in Cannon Street, in the London parish of St Nicholas Acon. The Jews also introduced the more advanced forms of medical learning, and were able to serve as doctors even to the native community. Roger Bacon himself studied under rabbis at Oxford.
More dubious legal tactics were also enforced. William Rufus decreed, for example, that Jews could not be converted to Christianity; he did not want their number to fall. That may not have been a very Christian act, but William Rufus was never a very good Christian. He supported the Jews partly because it offended the bishops; he enjoyed causing affront to his churchmen.
That royal protection did not necessarily extend very far. At the time of the coronation of Richard I, in 1189, some Jews were beaten back from the front row of spectators; the crowd turned on them, and a riotous assault began upon the London quarters of Jewry. The incident became the cause of fresh outrages as the news of the attack spread; it emboldened native hostility, and gave an excuse for further carnage. 500 Jews, with their families, took refuge in the castle at York where they were besieged by the citizens; in desperation the men killed their wives and children before killing themselves. Richard was even then making preparations for his crusade to the Holy Land; violence and religious bigotry were in the air. His successor, John, renewed his protection in exchange for large sums of money. In 1201 a formal charter was drawn up, giving the Jews their own court. They were allowed to live ‘freely and honourably’ in England, which meant that they were here to make money for the king. Nine years later John took over all the debts of the Jews, living or dead, and tried to extract the money from the debtors for his own benefit. It was another reason for the barons’ revolt that led to the sealing of the Magna Carta.