Securing a proper burial was one motive for a working class person to belong to a trade guild. In the year 133 under Hadrian, the formation of "collegia" specifically for this purpose was recognized by law, preserved at the head of the regulations of a "collegium" instituted for the worship of Diana and Antinous at Lanuvium. According to the "Digest" (47. 22), this was a general law allowing the founding of funerary associations, as long as the law against illicit "collegia" was complied with. The inscription of Lanuvium, together with many others, indicates that heir members were as a rule of the humblest classes of society, and often included slaves. Each member paid an entrance fee and a monthly subscription, and a funeral grant was made to his heir upon death in order to bury him in the burying-place of the college, or if they were too poor to construct one of their own, to secure burial in a public columbarium.