It is difficult to estimate the effect which the Tudor policy had upon the landholding of England. Under the feudal system, the land was held in trust and burdened with the support of the soldiery. Henry VII., in order to weaken the power of the nobles, put an end to their maintaining independent soldiery. Thus landlords' incomes increased, though their material power was curtailed. It would not have been difficult at this time to have loaded these properties with annual payments equal to the cost of the soldiers which they were bound to maintain, or to have given each of them a farm under the Crown, and strict justice would have prevented the landowners from putting into their pockets those revenues which, according to the grants and patents of the Conqueror and his successors, were specially devoted to the maintenance of the army. Land was released from the conditions with which it was burdened when granted. This was not done by direct legislation but by its being the policy of the Crown to prevent "king-makers" arising from among the nobility. The dread of Warwick influenced Henry. He inaugurated a policy which transferred the support of the army from the lands, which should solely have borne it, to the general revenue of the country. Thus he relieved one class at the expense of the nation. Yet, when Henry was about to wage war on the Continent, he called all his subjects to accompany him, under pain of forfeiture of their lands; and he did not omit levying the accustomed feudal charge for knighting his eldest son and for marrying his eldest daughter. The acts to prevent the landholder from oppressing the occupier, and those for the encouragement of tillage, failed. The new idea of property in land, which then obtained, proved too powerful to be altered by legislation. Another change in the system of landholding took place in those reigns. Lord Cromwell, who succeeded Cardinal Wolsey as minister to Henry VIII., had land in Kent, and he obtained the passing of an act (31 Henry VIII., cap. 2) which took his land and that of other owners therein named, out of the custom of gavelkind (gave-all-kind), which had existed in Kent from before the Norman Conquest, and enacted that they should descend according to common law in like manner as lands held by knight's service.