As soon as you hear the name Cleopatra you instantly think of the last active pharaoh of Egypt - so what made her so 'first name famous' in the first place? Cleopatra VII Philopator was a member of the Ptolemaic dynasty who was also a member of Macedonian Greek origin who saw their rule shortly after the death of Alexander the Great. Other members of her origin refused to speak Egyptian and only used Greek to communicate. Interestingly, that is the sole reason that the Greek language was used on official court documents such as the Rosetta Stone.
However, Cleopatra was keen to adopt the Egyptian language and culture as she represented herself as the one and only reincarnation of the Egyptian goddess Isis. Perhaps she was just on a little bit of an ego trip.