His infancy and childhood were spent in the midst of danger and trouble; for he accompanied his parents everywhere in their flight, and twice at Naples nearly betrayed them by his crying, when they were privately hastening to a ship, as the enemy rushed into the town; once, when he was snatched from his nurse's breast, and again, from his mother's bosom, by some of the company, who on the sudden emergency wished to relieve the women of their burden. Being carried through Sicily and Achaia, and entrusted for some time to the care of the Lacedaemonians, who were under the protection of the Claudian family, upon his departure thence when travelling by night, he ran the hazard of his life, by a fire which, suddenly bursting out of a wood on all sides, surrounded the whole party so closely, that part of Livia's dress and hair was burnt. The presents which were made him by Pompeia, sister to Sextus Pompey, in Sicily, namely, a cloak, with a clasp, and bullae of gold, are still in existence, and shewn at Baiae to this day. After his return to the city, being adopted by Marcus Gallius, a senator, in his will, he took possession of the estate; but soon afterwards declined the use of his name, because Gallius had been of the party opposed to Augustus. When only nine years of age, he pronounced a funeral oration in praise of his father upon the rostra; and afterwards, when he had nearly attained the age of manhood, he attended the chariot of Augustus, in his triumph for the victory at Actium, riding on the left-hand horse, whilst Marcellus, Octavia's son, rode that on the right. He likewise presided at the games celebrated on account of that victory; and in the Trojan games intermixed with the Circensian, he commanded a troop of the biggest boys.

After assuming the manly habit, he spent his youth, and the rest of his life until he succeeded to the government, in the following manner: he gave the people an entertainment of gladiators, in memory of his father, and another for his grandfather Drusus, at different times and in different places: the first in the forum, the second in the amphitheatre; some gladiators who had been honourably discharged, being induced to engage again, by a reward of a hundred thousand sesterces. He likewise exhibited public sports, at which he was not present himself. All these he performed with great magnificence, at the expense of his mother and father-in-law. He married Agrippina, the daughter of Marcus Agrippa, and granddaughter of Caecilius Atticus, a Roman knight, the same person to whom Cicero has addressed so many epistles. After having by her his son Drusus, he was obliged to part with her,A.U.C. 744 though she retained his affection, and was again pregnant, to make way for marrying Augustus's daughter Julia. But this he did with extreme reluctance; for, besides having the warmest attachment to Agrippina, he was disgusted with the conduct of Julia, who had made indecent advances to him during the lifetime of her former husband; and that she was a woman of loose character, was the general opinion. At divorcing Agrippina he felt the deepest regret; and upon meeting her afterwards, he looked after her with eyes so passionately expressive of affection, that care was taken she should never again come in his sight. At first, however, he lived quietly and happily with Julia; but a rupture soon ensued, which became so violent, that after the loss of their son, the pledge of their union, who was born at Aquileia and died in infancy,A.U.C. 735 he never would sleep with her more. He lost his brother Drusus in Germany, and brought his body to Rome, travelling all the way on foot before it.

When he first applied himself to civil affairs, he defended the several causes of king Archelaus, the Trallians, and the Thessalians, before Augustus, who sat as judge at the trials. He addressed the senate on behalf of the Laodiceans, the Thyatireans, and Chians, who had suffered greatly by an earthquake, and implored relief from Rome. He prosecuted Fannius Caepio, who had been engaged in a conspiracy with Varro Mursena against Augustus, and procured sentence of condemnation against him. Amidst all this, he had besides to superintend two departments of the administration, that of supplying the city with corn, which was then very scarce, and that of clearing the houses of correctionSee before, in the reign of Augustus, c. xxxii. throughout Italy, the masters of which had fallen under the odious suspicion of seizing and keeping confined, not only travellers, but those whom the fear of being obliged to serve in the army had driven to seek refuge in such places.

He made his first campaign, as a military tribune, in the Cantabrian war.A. U. C. 728. Afterwards he led an army into the East,A.U.C. 734 where he restored the kingdom of Armenia to Tigranes; and seated on a tribunal, put a crown upon his head. He likewise recovered from the Parthians the standards which they had taken from Crassus. He next governed, for nearly a year, the province of Gallia Comata, which was then in great disorder, on account of the incursions of the barbarians, and the feuds of the chiefs. He afterwards commanded in the several wars against the Rhaetians, Vindelicians, Pannonians, and Germans. In the Rhaetian and Vindelician wars, he subdued the nations in the Alps; and in the Pannonian wars the Bruci, and the Dalmatians. In the German war, he transplanted into Gaul forty thousand of the enemy who had submitted, and assigned them lands near the banks of the Rhine. For these actions, he entered the city with an ovation, but riding in a chariot, and is said by some to have been the first that ever was honoured with this distinction. He filled early the principal offices of state; and passed through the quaestorship,A.U.C. 737 praetorship,A.U.C. 741 and consulatesA.U.C. 747 almost successively. After some interval, he was chosen consul a second time, and held the tribunitian authority during five years.

Surrounded by all this prosperity, in the prime of life and in excellent health, he suddenly formed the resolution of withdrawing to a greater distance from Rome.A.U.C. 748 It is uncertain whether this was the result of disgust for his wife, whom he neither durst accuse nor divorce, and the connection with whom became every day more intolerable; or to prevent that indifference towards him, which his constant residence in the city might produce; or in the hope of supporting and improving by absence his authority in the state, if the public should have occasion for his service. Some are of opinion, that as Augustus's sons were now grown up to years of maturity, he voluntarily relinquished the possession he had long enjoyed of the second place in the government, as Agrippa had done before him; who, when M. Marcellus was advanced to public offices, retired to Mitylene, that he might not seem to stand in the way of his promotion, or in any respect lessen him by his presence. The same reason likewise Tiberius gave afterwards for his retirement; but his pretext at this time was, that he was satiated with honours, and desirous of being relieved from the fatigue of business; requesting therefore that he might have leave to withdraw. And neither the earnest entreaties of his mother, nor the complaint of his father-in-law made even in the senate, that he was deserted by him, could prevail upon him to alter his resolution. Upon their persisting in the design of detaining him, he refused to take any sustenance for four days together. At last, having obtained permission, leaving his wife and son at Rome, he proceeded to Ostia,Ostia, at the mouth of the Tiber, about thirteen miles from the city, was founded by Ancus Martins. Being the port of a city like Rome, it could not fail to become opulent; and it was a place of much resort, ornamented with fine edifices, and the environs " never failing of pasture in the summer time, and in the winter covered with roses and other flowers." The port having been filled up with the depositions of the Tiber, it became deserted, and is now abandoned to misery and malaria. The bishopric of Ostia being the oldest in the Roman church, its bishop has always retained some peculiar privileges. without exchanging a word with those who attended him, and having enbraced but very few persons at parting.