Cleopatra was queen of Egypt. While queen, she had affairs with Julius Caesar, and upon his assassination, an affair with Marc Antony. Antony made a significantly outstanding speech, tongue in cheek supposedly praising Caesar, a speech which prompted Rome to revolt.
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Cheops is the Greek name. Khufu is Egyptian. (Probably Herodotus named the pyramid Cheops and it stuck as a name for Khufu.)
It is quite well known that Cleo had several personalities, one being a psychic late at night thinking she was from Jamaica. The other one was well known for lusting after men, preforming scandalous acts for money, and spelled her name Clio. The third personality was a good friend of The Doctor. The 4th and final personality was known for being ugly and not beautiful at all. As for the 4th's attitude there is not much to learn from.