I'm not sure specifically as I haven't read the novel. But typically in a novel about the fall of Rome, you might expect characters like Roman emperors, generals, senators, and perhaps barbarians who were involved in the events of that time.
Since I haven't read the novel, I can only guess. Maybe the characters start with certain beliefs and values at the beginning. As the story progresses and they face the reality of Rome's fall, they could change. For example, a proud Roman senator might start to question his loyalty to the empire as he sees its corruption and inability to defend itself. Or a barbarian leader might initially see Rome as just a target for plunder but later develop a more complex view as he interacts with Roman characters and learns about their culture. The development would likely be tied to the historical events that led to the fall of Rome.
It helps by bringing the events to life. For example, in 'I, Claudius', we see the power struggles and family intrigues that were part of the real Rome. These fictional accounts can make the dry historical facts more interesting and accessible.
I'm sorry, I don't know the main characters as I haven't read the book. But they could be a local Roman and a foreigner, which would add an interesting dynamic to the story set in Rome.
Well, 'The Fall of the Roman Empire' by David Pivar is a must - read in this genre. It delves deep into the political and social unrest that contributed to the fall. Also, Colleen McCullough's 'Masters of Rome' series, though not solely focused on the fall, provides a great backdrop and build - up to that era. Additionally, 'Rome: The Fall of an Empire' by Adrian Goldsworthy gives detailed insights into the military and economic aspects of Rome's decline.
The main character is surely the courtesan of Rome. Alongside her, there may be characters such as her servants or confidants who help her in her daily life and schemes. There could be a powerful merchant who finances her lifestyle or a jealous noblewoman who tries to bring her down. There might also be a wise old man who gives her advice on how to survive in the cut - throat world of Rome's high society.
There are often characters based on real historical figures with altered fates. For instance, Augustus, but in a scenario where he faced more significant challenges to his rule. This could lead to him being a more complex and perhaps more ruthless leader as he fought to maintain his power in a different historical context.