Battle of Actium
Shwartz's "Heirs to Byzantium" trilogy – "Byzantium's Crown" (1987), "The Woman of Flowers" (1987) and "Queensblade" (1988) is an alternate history series. The Heirs to Byzantium novels are set in a world where Marc Antony defeats Octavius in the Battle of Actium, and joins with Cleopatra to make Byzantium capital of the Roman Empire.