 Those same historical accounts state that the couple disagreed over Scipio's treatment of his young cousin and former ward Tiberius Gracchus, who had tried to arrange a settlement for Numantia and bring an entire Roman army out of captivity.Scipio denounced the treaty in the Senate, and although Gracchus was saved from punishment, he bore a grudge against Scipio and his allies henceforth.He allied himself with Scipio's political rival Appius Claudius Pulcher, who was Princeps Senatus and censor in 136 BC and other influential men allied to him by marriage, and became tribune of the plebs to implement a radical reform program that threatened to undermine the socio-economic and political order.