Tiberius and Caius Gracchus (Caius.17.3)

According to some writers, however, both were taken alive by the enemy, and because the servant had thrown his arms about his master, no one was able to strike the master until the slave had first been dispatched by the blows of many. Someone cut off the head of Caius, we are told, and was carrying it along, but was robbed of it by a certain friend of Opimius, Septimuleius; for proclamation had been made at the beginning of the battle that an equal weight of gold would be paid the men who brought the head of Caius or Fulvius.