For 10 points, give this cognomen shared by the two tribunes Tiberius and Gaius.
One man with this last name forced Gaius Popillius Laenas into exile, while another held a public feast which was painted and dedicated to the Aventine after he emerged victorious at the Battle of Beneventum. Yet another man of this surname reportedly asked a slave to stab him after he was attacked by Lucius Opimius, thus meeting his death alongside his ally Marcus Fulvius Flaccus. The previously mentioned man was clubbed to death on the orders of his cousin Scipio Nasica, after earlier negotiating a heroic peace treaty with the Numantines while serving as quaestor for Gaius Hostilius Mancinus. He was the son-in-law of Appius Claudius Pulcher, while another figure of this surname notably proposed the Sempronian Laws. For 10 points, give this cognomen shared by the two tribunes Tiberius and Gaius.
One man with this last name forced Gaius Popillius Laenas into exile, while another held a public feast which was painted and dedicated to the Aventine after he emerged victorious at the Battle of Beneventum.
Gracchus