8. Octavian enters Alexandria, securing the Egyptian treasury and ordering the execution of Caesarion to eliminate any rival heirs. Cleopatra commits suicide—likely via a cobra—to avoid being paraded in a Roman triumph. In 27 BC, Octavian takes the title "Augustus," establishing the Roman Empire by artfully using authority rather than raw power. His sister Octavia remains a central figure, raising the children of both families to secure a future dynasty. Augustus transforms Rome from wood into a "marbled wonder," ruling until his death in 14 AD. (8)