I learned about Cleopatra's historical background story in my old school where I was saw my former teacher's presentation about Egyptian history. She was the last pharaoh of Egypt and she ruled for 21 years. She was born in 69 BC in Alexandria, Egypt and she died in 30 BC.
I really desire to ask you a mysterious question.
Why didn't she allow one of her kids to take over in that reign?
She had little choice since she (and Marc Antony) had just lost a war and her kingdom became a Roman province. You can read more about her children in this thread by u/cleopatra_philopater (fittingly enough) and this summary by u/Illustrious_Wasabi30. If you are interested in the background of Egyptian-Roman relations as well u/Alkibiades415 and the aforementioned cleopatra_philopater has written on this here