of (or credit for) any major military victory. This meant that Augustus was the only individual able to receive a triumph, a tradition that began with Romulus, Rome's first king and first triumphant general. Lucius Cornelius Balbus was the last man outside Augustus's family to receive this award, in 19 BC. Tiberius, Augustus's eldest stepson by Livia, was the only other general to receive a triumph—for victories in Germania in 7 BC. Normally during republican times, the powers Augustus held even after the second settlement would have been split between several people, who would each exercise them with the assistance of a colleague and for a specific period of time. Augustus held them all at once by himself and with no time limits; even those that nominally had time limits were automatically renewed whenever they lapsed. Conspiracy Many of the political subtleties of the second settlement seem to have evaded the comprehension of the plebeian class, who were Augustus's greatest supporters and clientele. This caused them to insist upon Augustus's participation in imperial affairs from time to time. Augustus failed to stand for election as consul in 22 BC, and fears arose once again that he was being forced from power by the aristocratic Senate. In 22, 21, and 19 BC, the people rioted in response and only allowed a single consul to be elected for each of those years, ostensibly to leave the other position open for Augustus. Likewise, there was a food shortage in Rome in 22 BC which sparked panic, while many urban plebs called for Augustus to take on dictatorial powers to personally oversee the crisis. After a theatrical display of refusal before the Senate, Augustus finally accepted authority over Rome's grain supply "by virtue of his proconsular imperium", and ended the crisis almost immediately. It was not until AD 8 that a food crisis of this sort prompted Augustus to establish a praefectus annonae, a permanent prefect who was in charge of procuring food supplies for Rome. There were some who were concerned by the expansion of powers granted to Augustus by the second settlement, and this came to a head with the apparent conspiracy of Fannius Caepio. Some time prior to 1 September 22 BC, a certain Castricius provided Augustus with information about a conspiracy led by Fannius Caepio. Murena, the outspoken consul who defended Primus in the Marcus Primus affair, was named among