Which one of the following factors did not contribute to the revival of Roman law in Western Europe in the eleventh century?
(1) The law of that time could no longer satisfy the needs of a more complex and sophisticated society.
(2) In terms of the feudal system, each region, city or town had its own separate legal system.
(3) The legal diversity at the time hampered trade and created a need for one universal written legal system.
(4) Roman law, a sophisticated legal system, was known to everybody and was easily available in the form of the Decretum Gratiani.