Cleopatra VII Philopator (Greek: Κλεοπάτρα Φιλοπάτωρ Cleopatra Philopator; 69 – August 10 or 12, 30 BC)[note 2] 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. After the death of Cleopatra, Egypt became a province of the Roman Empire, marking the end of the Hellenistic period that had lasted since the reign of Alexander (336–323 BC). Her native language was Koine Greek and she was the first Ptolemaic ruler to learn the Egyptian language.