Sources Chauveau, Michel. Both sides asked for Egyptian support, and after some stalling Cleopatra sent four Roman legions stationed in Egypt by Caesar to support the triumvirate.
The two strongest factions vying for control were the armies of Mark Antony and Octavian, the new Caesar. She established her son as her co-ruler Ptolemy XV Caesarion.
Cleopatra was in Rome when Caesar was murdered in 44 bce. His only redeeming trait was how he managed to secure the Egyptian throne, passing it on in his will after this sudden natural death late in the year of 51 BC.
After suffering a crushing defeat at the hands of Roman rival OctavianMark Antony, believing Cleopatra to be dead, killed himself. Cleopatra paid at least one state visit to Rome, accompanied by her husband-brother and son. Ptolemy then married his son, about 9 years old, to his remaining daughter, Cleopatra, who was by this time about Kleiner, Diana E.
After her death, the Roman emperor Augustus lured Caesarion back with promises of power, only to have him killed. This was not their first meeting as they had first encountered each other in 55 BC during a campaign in Egypt and again in 48 BC.
By this point, Cleopatra had strongly identified herself with the goddess Isis, the sister-wife of Osiris and mother of Horus.