In his domestic life Augustus was singularly unfortunate. Livia, his wife, for whom he entertained a sincere affection, was a person of strong intellect and various accomplishments; but she was descended from the Claudian family, and inherited all the pride, ambition, and love of political intrigue which marked the descendants of Appius Claudius. She was also married to a Claudius, and thus her two sons by her first husband, Tiberius and Drusus, were even more than herself Claudians. On them all Livia's affections were fixed; to secure their aggrandizement she hesitated at no effort and no crime; and when Drusus died, her son Tiberius, who resembled his mother in disposition, became the chief object of her regard. Her husband and his family wore looked upon with jealousy and dislike, and the darkest suspicions were aroused at Rome by the death, one by one, of every person who stood between Tiberius and the throne.

Livia had no child by her second marriage, and the only heir of Augustus was Julia, the daughter of his former wife, Scribonia. Julia was beautiful, intelligent, and highly educated; and Augustus, who was strongly attached to his own family, looked upon his daughter with singular affection and pride. He hoped to see her grow up pure, wise, and discreet—a new Lucretia, the representative of the ideal Roman matron; and he early accustomed Julia to practice moderation in dress, to spend hours at the spinning-wheel, and to look upon herself as destined to become the model and example of Roman women.

Julia was first married to her cousin Marcellus, the son of Octavia, a young man of excellent character, whom Augustus adopted, and probably destined as his successor; but, in B.C. 23, Marcellus died, amid the sincere grief of all the Romans. Marcellus has been made immortal by a few touching lines of Virgil.

Not long after, Augustus married Julia to his friend Agrippa, and they had five children—three sons, Caius, Lucius, and Agrippa Postumus, the latter being born after the death of his father, and two daughters, Julia and Agrippina. These children were now the hope of the people and the emperor, and objects of jealousy and dislike to Livia and Tiberius.

In B.C. 12 Agrippa died. Augustus then prevailed upon Tiberius to divorce his own wife, to whom he was sincerely attached, in order to marry Julia. Their union was an unhappy one, and, after living together for about a year, they separated forever.

The conduct of Julia, in fact, had long been marked by gross immoralities, and Augustus alone was unconscious of her unworthiness. He refused to believe that his daughter, whom he had destined to become an example of purity, had so deceived and dishonored him. At length, however, he became convinced of her guilt, and banished her (B.C. 2) to the island Pandataria (Santa Maria), off the coast of Campania, where she was treated with just severity. Her daughter Julia, who had shared in her excesses, was also sent into exile.

Meanwhile Caius and Lucius Cæsar both died suddenly. Caius was sent to the East in B.C. 1, to improve himself in military affairs, and there died, A.D. 3, from the effects of a wound given him by an assassin. Lucius, the younger, having gone on a mission to Spain in A.D. 2, fell sick and died at Massilia. About this time Tiberius had been recalled from Rhodes and intrusted with the chief care of public affairs. It was believed at Rome that Livia and her son had removed the two Cæsars by poison and assassination.

All happiness must now have fled from the breast of the emperor. He still, however, attended carefully to the duties of his station. In A.D. 4 he adopted Tiberius, together with Agrippa Postumus; Tiberius was obliged at the same time to adopt Germanicus, the eldest son of his brother Drusus. In A.D. 7 Augustus was induced to banish Agrippa Postumus, who proved unworthy of his favor, to the island of Planasia, and this act was ratified by a decree of the Senate; it was thought, however, that Livia was again the cause of this unnatural act. In A.D. 8 the poet Ovid was banished for some unknown crime.