a legal professor at Constantinople and comes sacrarum largitionum, who was charged by Justinian, in A. D. 530, to compile the Digest along with Tribonian, the head of the commission, the professor Theophilus of Constantinople, Dorotheus and Anatolius, professors at Berytus, and twelve patroni causarum, of whom Stephanus is the best known. The commissioners completed their task in three years. Cratinus does not appear to have been further employed in the other compilations of Justinian. The commission is recited in the second preface to the Digest (Const. Tanta, § 9), and Cratinus is one of the eight professors to whom the constitutio Omnem (so called from its initial word), establishing the new system of legal education, is addressed.