Calpurnia was either the third or fourth wife of Julius Caesar, and the one to whom he was married at the time of his assassination. According to contemporary sources, she was a good and faithful wife, in spite of her husband's infidelity; and, forewarned of the attempt on his life, she endeavored in vain to prevent his murder. Biography Background Born 76 BC, Calpurnia was the daughter of Lucius Calpurnius Piso Caesoninus, consul in 58 BC. Her half-brother was Lucius Calpurnius Piso, who would become consul in 15 BC. Marriage Calpurnia married Julius Caesar late in 59 BC, during the latter's consulship. She was about seventeen years old, and was likely younger than her stepdaughter, Julia. About this time, Julia married Gnaeus Pompeius Magnus, a former protégé of Sulla, who had been consul in 70 BC, and recently become one of Caesar's closest political allies. Prior to their marriage, Caesar had been married either two or three times. In his childhood, Caesar had been betrothed to Cossutia, the daughter of a wealthy eques, although there is some uncertainty as to whether they were ever formally married. According to Suetonius, he was obliged to break off their engagement when, at the age of sixteen, he was nominated Flamen Dialis, a high-ranking priestly office whose holders had to be married by confarreatio, an ancient and solemn form of marriage that was open only to patricians. Caesar then married Cornelia, a woman of patrician rank and the daughter of Lucius Cornelius Cinna, at that time the most powerful man in Rome. By all accounts, their marriage was a happy one, and the product of their union was Julia, Caesar's only legitimate child. Following the downfall and death of Cinna and the ruin of his faction, the dictator Sulla commanded Caesar to divorce his rival's daughter, a demand that Caesar refused at great personal risk, for it nearly cost him his life. Cornelia died in 69 or 68 BC, as her husband was preparing to set out for Spain. On his return, Caesar married Pompeia, a granddaughter of Sulla. Their marriage ended in scandal. In 63 BC, Caesar had been elected Pontifex Maximus, receiving as his official residence a house on the Via Sacra. Here the sacred rites of the Bona Dea, from which all men were excluded, were celebrated in the winter of 62. But an ambitious young nobleman named Publius Claudius Pulcher