The clergy were not content with this merely negative position. Besides the right of self-taxation, they claimed that the laity should contribute to the needs of the Church. The chief permanent source of such contribution was the tithe, both the lesser tithes on smaller animals, fruits, and vegetables, and the greater tithes on corn, wine, and the larger animals. The Church also claimed tithes of revenues of every kind, even from such divers classes as traders, soldiers, beggars, and abandoned women. Much of the regular tithe had fallen into the hands of laymen by gift from Kings to feudal tenants, or from bishops to nobles and others, in return for military protection. These alienated tithes Gregory VII tried to recover; but his need for the help of the nobles against the Emperor forced him to stay his hand. The third Lateran Council (1179) forbade, on pain of peril to the soul, the transfer of tithes from one layman to another, and deprived of Christian burial any one who, apparently having received such a transfer, should not have made it over to the Church. This was a definite claim for tithes as a right of which the Church had only been deprived by some wrongful act. But in the very next year (1180) Frederick I, at the Diet of Gelnhausen, declared that the alienation of tithes as feudal fiefs to defenders of the Church was perfectly legitimate. Religious scruples, however, seem to have caused the surrender of tithes by many lay impropriators, especially to monasteries. [Sidenote: Bequests.] There were many other sources of wealth to the Church. An enormous quantity of property was bequeathed to pious uses by testators. The attendance of the clergy at the death-bed gave them an opportunity of which they were not slow to make use. The bodies of those who died intestate, as of those unconfessed, were denied burial in consecrated ground; all questions concerning wills were heard in the ecclesiastical courts. The civil power attempted to check the freedom of death-bed bequest, especially in Germany, where it was held that a valid will could only be made by one who was still well enough to walk unsupported. Another common source of revenue came from purchases or mortgages or other arrangements made with crusaders, in which advantage was taken of the haste of the lay men to raise funds for their expedition. [Sidenote: Wealth of the Church.]