In 101 BC, the Sixth Doctor and Evelyn Smythe met Caesar's parents, Gaius Julius Caesar the Elder and Aurelia on two occasions and witnessed the birth of his elder sister Julia Caesar in January of that year.
At some point, Caesar was married to Pompeia. After a scandalous incident in which a man managed to enter Pompeia's Bona Dea festival, Caesar promptly divorced her, as, in his own words, his wife must be "above suspicion". (PROSE: Sarah Jane and the Temple of Eyes)
In 49 BCE, Caesar was planning to cross the Rubicon with his army. The Master's attempt to poison him and take over the command was thwarted by the Seventh Doctor and Ace. (COMIC: Crossing the Rubicon) The Tenth Doctor offered to take Rose Tyler to see Caesar crossing the Rubicon. (TV: Tooth and Claw) A year later in 48 BCE, he gained full control of Rome following the death of Pompey. (PROSE: The Slave War)
Julius Caesar was murdered by a group of conspirators that included Brutus. The murder has become a popular theme for paintings. One of such paintings hung in John Thurloe's Parliament chambers above the mantel. (PROSE: The Roundheads) According to the Fifth Doctor, Caesar was killed by "people he thought were his friends and allies". (PROSE: Rome)
William Shakespeare wrote a play based on the life of Julius Caesar. General Mariah Learman planned to use her time machine to watch the premiere performance of this play. (AUDIO: The Time of the Daleks)
Cowards die many times before their deaths. The valiant never taste of death but once.