The Shards of Heaven chronicles Mark Anthony and what empire?
The Shards of Heaven:  It chronicles Octavian's war against Mark Antony and Cleopatra, seen from the perspective of the minor historical figures who surround them. Mark Antony: Marcus Antonius (Latin: ; January 14, 83 BC – August 1, 30 BC), commonly known in English as Mark or Marc Antony, was a Roman politician and general who played a critical role in the transformation of the Roman Republic from an oligarchy into the autocratic Roman Empire.
Roman Empire