Janet, can you please send me the link about titles. I'll be eliminating many of my 'My Lord' and 'My Lady' in the next draft, but I'll still need a few. I remember I didn't like the fact that Joseph's mother is addressed as Your Majesty, but the Emperor merely as my lord, so I went with caps.
For the most part, I'm going to use the historical honorifics Caesar, Augustus, and Augusta (when addressing the imperial heir, emperor, and empress.) Apollo's father's given name (currently Augustus) will become Nero, to keep things simple.
Emperor and Empress (or maybe Imperator and Imperatrix?) willl be used when referring to them in the third person. Got all that? Now imagine writing it so that Amy doesn't have kittens all over my chapter. I'll probably use an epigraph just to explain this, including some of the family tree. I guess that means I should name the first emperor, too, huh? The changes will probably blow up in my face somewhere, but I like the historical connection.
Caligula will keep his honorific: Little Bastard. :-) Based on some last minute changes to his character, he'll get his revenge. I can't wait to write his chapter (next up), but taxes and procrastination beckon.