Astrologers resided with the families of the barons. People went to fortune tellers' shops. There was horse racing, steeple races, and chess for recreation. Girls had dolls; boys had toy soldiers, spinning tops, toy horses, ships, and wooden models. The state of medicine is indicated by this medical advice brought to the nation by William's son after treatment on the continent: "If thou would have health and vigor Shun cares and avoid anger. Be temperate in eating And in the use of wine. After a heavy meal Rise and take the air Sleep not with an overloaded stomach And above all thou must Respond to Nature when she calls." The Conquerer allowed Jewish traders to follow him from Normandy and settle in separate sections of the main towns. Then engaged in long distance trade, money changing, and money lending. They loaned money for interest for the building of castles and cathedrals. Christians were not allowed by the church to engage in this usury. The Jews could not become citizens nor could they have standing in the local courts. Instead, a royal justiciar secured justice for them. They could practice their own religion. William the Conquerer was succeeded as king by his son William II (Rufus), who transgressed many of the customs of the nation to get more money for himself. He was killed by an arrow of a fellow hunter while they and William's younger brother Henry were hunting together in a crown forest. Henry then became king. The Law The notion of the king's peace extended until it was the normal and general safeguard of the public order. The Norman conquerors brought no code of written law. William's laws largely affirmed the laws of the nation as they were in the times of Edward I. These are substantially all of the laws of William I: All freemen shall swear an oath of loyalty to William I and shall uphold his lands and honors and defend them against enemies and aliens. William will protect them and exact no more than legally owed service. If a Frenchman summons an Englishman for perjury, murder, theft, homicide or open robbery, the Englishman shall defend himself by whichever method he prefers, either the ordeal of iron or trial by combat. The person defeated shall pay a fine to the king. If an Englishman summons a Frenchman and declines to prove the charge by ordeal or by combat, the Frenchman shall clear himself by a comprehensive oath. For a charge of outlawry, an Englishman shall clear himself by the ordeal of iron. When an Englishman brings a charge of outlawry against a Frenchman, the Frechman will defend himself by combat or by a comprehensive oath, at the choice of the Englishman.