In 1309, when all hope of the recovery of the Christian dominion in the East had been abandoned, and no further crusades seemed probable, it was determined to remove the seat of the grand master from Venice to Marienberg. At a chapter of the order held there, further regulations were agreed upon for the government of the conquered countries, some of which are very curious, but give an interesting picture of the state of the people and of society at that period. Thus it was commanded that no Jew, necromancer, or sorcerer should be allowed to settle in the country. Masters who had slaves, and generally Prussians, prisoners of war, were obliged to send them to the parish church to be instructed by the clergy in the Christian religion. German alone was to be spoken, and the ancient language of the country was forbidden, to prevent the people hatching conspiracies, and to do away with the old idolatry and heathen superstitions. Prussians were not allowed to open shops or taverns, nor to act as surgeons or accoucheurs.
The wages of servants were strictly settled, and no increase or diminution was permitted. Three marks and a half a year were the wages of a carpenter or smith, two and a half marks of a coachman, a mark and a half of a laborer, two marks of a domestic servant, and half a mark of a nurse. Masters had the right to follow their runaway servants, and to pierce their ears; but if they dismissed a servant before the end of his term of service, they must pay him a year's wages. Servants were not allowed to marry during time of harvest and vintage, under penalty of losing a year's wages and paying a fine of three marks. No bargains were to be made on Sundays and festivals, and no shops were to be open on those days till after morning service.
Sumptuary laws of the most stringent nature were passed, some of which appear very singular. At a marriage or other domestic festival, officers of justice might offer their guests six measures of beer, tradesmen must not give more than four, peasants only two. Playing for money, with dice or cards, was forbidden. Bishops were to visit their dioceses every three years, and to aid missions to the heathen. Those who gave drink to others must drink of the same beverage themselves, to avoid the danger of poisoning, as commonly practised by the heathen Prussians. A new coinage was also issued.