Suppose Cleopatra VII Philopator was the last active ruler of the Ptolemaic Kingdom of Egypt, nominally survived as pharaoh by her son Caesarion. She was also a diplomat, naval commander, linguist, and medical author. As a member of the Ptolemaic dynasty, she was a descendant of its founder Ptolemy I Soter, a Macedonian Greek general and companion of Alexander the Great.
Can we infer that "Cleopatra was a ruler of ancient Rome."? Yes, no, or maybe?