The exact date that the original "semikhah" succession ended is not certain. Many medieval authorities believed that this occurred during the reign of Hillel II, around the year 360 CE. However, Theodosius I forbade the Sanhedrin to assemble and declared ordination illegal. (Roman law prescribed capital punishment for any rabbi who received ordination and complete destruction of the town where the ordination occurred). It seems to have continued until at least 425, when Theodosius II executed Gamaliel VI and suppressed the Patriarchate and Sanhedrin.