 Rome decided to ignore Pompeius' peace and sent Gaius Hostilius Mancinus to continue the war in 136 BC.He assaulted the city and was repulsed several times before being routed and encircled, and so forced to accept a treaty, negotiated by a young Tiberius Gracchus.The Senate did not ratify this treaty either but only sent Mancinus to the Numantines as a prisoner.