Tiberius and Caius Gracchus
Plutarch
Plutarch. Plutarch's Lives, Vol. X. Perrin, Bernadotte, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1921.
But after Mucius began once more to summon the tribes to the vote, none of the customary forms could be observed because of the disturbance that arose on the outskirts of the throng, where there was crowding back and forth between the friends of Tiberius and their opponents, who were striving to force their way in and mingle with the rest. Moreover, at this juncture Fulvius Flaccus, a senator, posted himself in a conspicuous place, and since it was impossible to make his voice heard so far, indicated with his hand that he wished to tell Tiberius something meant for his ear alone.
Tiberius ordered the crowd to part for Flavius, who made his way up to him with difficulty, and told him that at a session of the senate the party of the rich, since they could not prevail upon the consul to do so, were purposing to kill Tiberius themselves, and for this purpose had under aims a multitude of their friends and slaves.
Tiberius, accordingly, reported this to those who stood about him, and they at once girded up their togas, and breaking in pieces the spear-shafts with which the officers keep back the crowd, distributed the fragments among themselves, that they might defend themselves against their assailants. Those who were farther off, however, wondered at what was going on and asked what it meant.