@BillRM,
Actually, although she certainly had Egyptian blood, considering Egyptians to have been "black" is a doubtful proposition. However, Cleopatra, and all of the Ptolemids were Macedonian and Egyptian by descent (except for the dynastic founder, Ptolemy Soter), not Greek. This is, i suspect, a distinction which does not rise above the horizon of Bill's understanding.
Cleopatra was a common name among the Macedonians. Probably the most famous Cleopatras of the ancient world before Cleopatra VII (which is to whom Bill refers) were the daughter of Philip II of Macedon and Olympias, meaning she was the younger sister of Alexander III, a.k.a. Alexander the Great; and Philip's second wife, Cleopatra. Without going into details, a disastrous attempt to marry Philip's daughter Cleopatra to his first wife's nephew ended with the suicide of Philip's second wife Cleopatra.
It is incredibly dull-witted to refer to the Ptolemids as "100 per cent Greek." The two closest friends of Alexander III when he was a boy were Nearchus and Ptolemy. Ptolemy married an Egyptian woman at the very beginning of his reign as King in Egypt, so not only were the Ptolemids not "100 per cent Greek," they weren't 100 per cent Macedonian, either.
You need to educate yourself, Bill, before you shoot your mouth off.