When Claudius came to power in January 41 he did not hesitate to distance himself from his predecessor's behaviour and policies, and among other measures, Suetonius reports, he abolished all Gaius' acta. The precise implications of this move are not made clear. Certainly, the extremely unpopular taxes introduced in Rome near the end of Gaius' reign were annulled, several people convicted of maiestas were set free, and the monies previously confiscated from negligent, and possibly corrupt, road commissioners were returned. But if the abolition of the acta was as sweeping as Suetonius seems to imply, a number of popular and useful measures must inevitably have been abrogated at the same time, and as a matter of routine they would need to be reintroduced by Claudius. The arrangements with the client kings may well have belonged to this general category, and if we assume that this was indeed the case we shall have an explanation for a number of apparent inconsistencies in the literary sources. It should be observed that in the early part of his principate Gaius went out of his way to be a ‘constitutional’ ruler. The appointment of the client kings would have been handled so as not to seem like the arbitrary exercise of power. Certainly, when the three sons of the murdered king of Thrace, Polemo, Cotys and Rhoemetalces received new kingdoms in 38, Dio stresses that the act was legitimised by a formal senatorial decree. If client kings had generally been established by a formal and legal process their appointments could quite well have come to an end with the abolition of the acta in January 41.