Following Antony's Donations of Alexandria, which gave Cleopatra the title of "Queen of Kings", and to their children the regal titles to the newly conquered Eastern territories, war between Octavian and Mark Antony broke out. Octavian annihilated Egyptian forces in the Battle of Actium in 31 BC. Mark Antony and Cleopatra committed suicide. Rome thus possessed unchallenged naval supremacy in the North Sea, Atlantic coasts, Mediterranean, Red Sea, and the Black Sea.
following antony's donations of alexandria which gave cleopatra the title of "queen of kings" and to their children the regal titles to the newly conquered eastern territories war between octavian and mark antony broke out octavian annihilated egyptian forces in the battle of actium in 31 bc mark antony and cleopatra committed suicide rome thus possessed unchallenged naval supremacy in the north sea atlantic coasts mediterranean red sea and the black sea