From the Flavian Dynasty on, with the financial power of the country turning into the hand of the emperor, the distinction between the aerarium saturni and the fiscus became less and less. In the 3rd century, the difference between the two disappeared. 从弗拉维王朝时期起,随着国家财经大权悉归元首,国库和元首私库的差别不断缩小,到公元3世纪时二者差别消失。