The famous Egyptian queen known for her alliances with Julius Caesar and Mark Antony was Cleopatra VII. She was the last active ruler of the Ptolemaic Kingdom of Egypt, taking the throne in 51 BCE. Cleopatra is often remembered for her intelligence, political acumen, and charm, which she used to strengthen Egypt’s position in the Roman world. Her relationships with these prominent Roman leaders aimed to secure her power and protect Egypt from Roman domination. Cleopatra's reign ended in 30 BCE after her defeat alongside Antony, ultimately marking the transition of Egypt into a Roman province.