Why did cleopatra rule Egypt?

Cleopatra ruled Egypt because she was 1) born a princess, 2) made co-ruler along with her brother in her father's will, and 3) was firmly established o the throne by Rome in the person o Julius Caesar.
Cleopatra ruled Egypt because she was 1) born a princess, 2) made co-ruler along with her brother in her father's will, and 3) was firmly established o the throne by Rome in the person o Julius Caesar.