Caesarian - Julious Caesar’s son with Cleopatra Octavian had killed. He clearly was a threat to Octavian’s rule.
The three children she had with Mark Anthony, See link below
https://worldhistory.us/ancient-history/ancient-egypt/cleopatras-children-and-descendants.php
Thanks Reily. Mark A probably has millions of living descendants, and not just due to Cleo. Probably Caesar also does, but Caesarion does not. He and his tutor were ready to board a ship to India and safety, but his tutor didn't much want to go (and/or got a lot of reward money), so he talked the kid out of it, convincing him that Octavian could be reasoned with. Whoops.