The famous queen who ruled Egypt and was known for her relationships with Julius Caesar and Mark Antony is Cleopatra VII. She reigned from 51 to 30 BCE and was the last active ruler of the Ptolemaic Kingdom of Egypt. Cleopatra was a skilled politician and diplomat, known for her intelligence and charisma. Her alliances with powerful Roman leaders sought to stabilize her throne amidst external pressures. Cleopatra's life and reign are marked by dramatic events and romantic entanglements that culminate in her tragic demise following the Roman invasion.