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 the enemy declared that they had confidence in no Roman save only Tiberius, and ordered that he should be sent to them. They had this feeling towards the young man not only on his own account (for he was held in very high esteem by the Numantine soldiery), but also because they remembered his father Tiberius, who waged war against the Spaniards,[*](In 180-179 B.C.) and subdued many of them, but made a peace with the Numantines, to the observance of which with integrity and justice he always held the Roman people.

So Tiberius was sent and held conference with the enemy, and after getting them to accept some conditions, and himself accepting others, effected a truce, and thereby manifestly saved the lives of twenty thousand Roman citizens, besides attendants and camp followers.