In 31 BC. during a naval battle at Actium, Antony and Cleopatra were defeated by Octavian. By the time Octavian arrived in Egypt in the summer of 30 BC, the couple had sent the children away. Caesarion went to India, but en route he was betrayed by his tutor, intercepted by Roman forces and executed. Selene, Alexander, and Ptolemy Philadelphos went south to Thebes. Meanwhile, their parents committed suicide as Octavian and his army invaded Egypt. The deaths of their mother and Caesarion left Selene and Alexander nominally in charge of Egypt until the kingdom was officially annexed by the Roman Empire two weeks later.