 The year of Judah's death is deduced from the statement that his student Rav left Palestine for good not long before Judah's death, in year 530 of the Seleucid era (219 CE).He assumed the office of patriarch during the reign of Marcus Aurelius and Lucius Verus (c. 165).Hence Judah, having been born about 135, became patriarch at the age of 30, and died at the age of about 85.