Tiberius was certainly in a very difficult position with regard to his mother. His natural sense of decorum, and possibly his natural affection, made him shrink from the very appearance of treating her with disrespect; but her domineering tendency, encouraged by years of unquestioned sway during her husband’s lifetime, tempted her to exaggerate the real claims which she had upon his dutiful affection; nor were the ladies of her household backward in regretting the change of circumstances, and in pointing out how different things had been in the lifetime of the sainted Augustus. Delicate as they were in any case, the relations between mother and son were rendered still more susceptible to disagreeable incidents by the presence of the aggrieved Agrippina, to whom mother and son alike were detestable usurpers, enjoying as the result of their nefarious intrigues the inalienable rights of the true Julians. Thus both the belligerent parties were opposed to Tiberius; his mother because he prevented her from continuing to enjoy a power which she had long exercised, his daughter-in-law, stepdaughter and niece, because in her opinion he usurped a power which she ought to have enjoyed, and because she had learned to regard her mother as a saint martyred by the agency of her stepfather in the cause of the Julian dynasty. There was no reason why Livia should like Drusus better than Germanicus; both her grandsons were alike leagued with her undutiful son to keep the shadow of petticoats off the Senate House.

Tiberius made his arrangements without taking the ladies into consideration. There was one member of the family whom he may have been glad to please, the beautiful Antonia, the widow of his brother Drusus and the mother of Germanicus. It is to the credit of this lady that her name is never mentioned in the list of intriguers; she escapes both praise and censure, though her persistent determination to live in retirement as a widow might have attracted the attention of those who found so much to admire in the “impenetrable chastity” of Agrippina. Perhaps the fortress of her virtue was less frequently assailed by those storms, assaults, blockades, and circumvallations which, we may presume, rendered the epithet no hyperbole in the case of her daughter-in-law.

The affairs of the East needed a comprehensive survey. Achaia and Macedonia had recently passed into the Emperor’s hands; the Senatorial Government had been defective in Bithynia; several of the Greek cities on the Ægæan had suffered severely in a disastrous earthquake; Cappadocia was being organized as a province; there were dynastic troubles in Armenia; the Parthians were showing signs of restlessness; the native princes on the Syrian frontier were also unsettled by questions of succession; Judæa was more than usually unquiet. Germanicus was therefore despatched to the East with proconsular powers, which gave him an authority higher than that of all proconsuls or governors in their own provinces, and with a commission to settle all differences on the spot according to his own judgment. So large a share of power had never been entrusted to any one except Augustus and Pompeius. On a previous occasion when the same services were required, Augustus had himself visited the East and conducted the business in person, but he was then a younger man than Tiberius was now, and he was able to leave behind him in the person of Mæcenas a more experienced, or at least more trustworthy, statesman than any who were within reach of Tiberius. Drusus, though a good soldier, had not shown statesmanlike qualities.

At the same time a new Governor was required for Syria, the richest of the Imperial Provinces, for its capital, Antioch, was the second city of the Empire, the emporium where East met West. To this post Tiberius appointed Gnæus Piso. Gnæus Piso belonged to a family which had long maintained its opposition to the Cæsars, although the last wife of Julius Cæsar, Calpurnia, had been a daughter of the house. Republican ideals were still cherished in this, one of the most ancient and noble of Roman families. The efforts of Tiberius to restore the Senate had not had a happy influence upon the two leading members of this house; one brother, Lucius, threatened to retire from public business altogether, disgusted with the obsequiousness of the Senate; the other, Gnæus, had distinguished himself by an aggressive outspokenness which threatened to breed unnecessary difficulties. Lucius was the Prætor who had refused to allow Urgulania to avoid paying her just debts, and for this reason it is improbable that Gnæus was in the confidence of Livia. He had rendered himself undesirable at Rome, but Tiberius had no doubt of his integrity, and thought that if he were honourably withdrawn for a time from the centre of affairs, public business would march more smoothly. Tiberius in fact was beginning to learn that it was not altogether wise to revive the pretensions of the old families.

Unfortunately Tiberius did not foresee the possibility of friction between Germanicus and Piso; still less did he take into account the results of the juxtaposition of two such explosive fireships as Agrippina and Plancina the wife of Piso; and he forgot that Plancina was among the devoted friends of Livia, who had a long-standing personal interest in the affairs of Syria and its adjacent principalities. It was the scene of her first diplomatic triumphs, the place where she had cemented by the interchange of presents a friendship with that worthy pater-familias Herod the Great, whose posterity shared with Jerusalem the honour of being a meeting point of the intrigues of the Jews of all nations.

The story of the events which followed is so obviously coloured by the partisanship of the chief actors that much of it must be far from the truth. It is not, for instance, easy to believe that Piso, having no authority outside his own province, would follow Germanicus to Athens, where Germanicus had authority, and take a pleasure in reversing his compliments to the Athenians. There is no inherent improbability in the action ascribed to Piso inside his own province, where he practically refused to recognize the proconsular power of Germanicus, but he could hardly with safety have followed the footsteps of Germanicus eastwards, loudly proclaiming his insubordination in places where he had no more right to express an opinion than a private citizen; had he done so, a swift Liburnian galley would have brought his letters of recall. Idle stories of this kind probably took their origin at a later period, and were communicated with mistaken zeal to Agrippina by her sympathizing friends.

At first all went well with Germanicus, and his commission bore the appearance of a holiday progress. He met his brother Drusus at Nicopolis, the city which had been built to commemorate the victory off the promontory of Actium, and they celebrated the glorious event in company; he then went to Athens, and up the Ægæan into the Euxine, redressing grievances and visiting holy places. In the course of the tour Agrippina’s youngest daughter Julia was born at Lesbos, destined afterwards to marry M. Vinicius, the friend of Paterculus. On the return journey southwards Germanicus met the convoy of Piso at Rhodes on its way to Syria, where, the historian tells us, that Germanicus, though well aware of the persecution of Piso, saved his ship from destruction in a storm. Germanicus made his way from thence to Armenia and the frontiers of the Empire, where he conducted his negotiations with success. Meanwhile Piso hurried on his way to Syria, and at once began to make favour with the army and the residents. His indulgences to the troops were such that the soldiers called him “father of the legions”; while Plancina, to the horror of Agrippina, forgetting the limitations of her sex, took part in drills and parades.

The first overt act of insubordination on the part of Piso was a neglect to forward some cohorts to Germanicus in Armenia. On the return of Germanicus he met Piso, and an attempt to adjust their mutual differences was rendered ineffective by the mischievous offices of friends. Germanicus himself was inclined to take a lenient view, but he was influenced by the suggestions of those who told him exaggerated stories about Piso and his sons and Plancina. A private conference was held, but the two men left it open enemies. After this Piso publicly resented all honours paid to Germanicus, and Plancina was particularly annoyed because her somewhat lucrative protégé Vonones, a former aspirant to the Parthian crown, was removed by Germanicus at the request of the Parthians to a safer distance from the frontier.

Germanicus finding that the best part of his work was accomplished, and that life in Syria was not pleasant, made a tour in Egypt, going up the Nile as far as Elephantine and Syene, then the limit of Roman rule. It is pleasing to find him visiting the same sights that attract the modern traveller, over whom he had an advantage in that the priests were able to read the inscriptions for him.

In visiting Egypt, Germanicus inadvertently broke a decree of Augustus, which forbade any Roman Senator or Equestrian to enter that private domain of the Emperor without special permission. Tiberius had written to bring this to his notice, but the letter arrived too late.