Cleopatra ascended the throne of Egypt in 51 BCE after her father dies and she marries her brother, Ptolemy XIII. In 49 BCE Cleopatra is expelled from Alexandria by a revolt staged by Ptolemy XIII's guardians. In 48 BCE Cleopatra meets Julius Caesar. In 47 BCE Caesar and Cleopatra defeat her Egyptian enemies and she takes the throne back. In 44 BCE Cleopatra has her youngest brother Ptolemy XV poisoned so that her son can rule Egypt when he is older. In 42 BCE Cleopatra meets Marc Antony for the first time as an adult.