(Have a free snippet from a work in progress.)
“Are you really in line for the throne?”
“Oh, yes. House Vintar is neither most ancient nor particularly high, and we Vidutars are a collateral line, so I’m something like… three and a quarter billionth in line for the throne, if you want to get into the fine details. Which he really should have.”
The chain of command, you see, extends right to the bottom. Inasmuch as Valentia I really disliked the possibility of succession crises, and wanted to make a point with her characteristic subtlety, heh, that you literally couldn’t kill off the Empire’s center with assassinations because there was always someone new to be chosen to step into the role.
Which did rather dilute “Unchosen Heir to the Dragon Throne, Successor of the Imperium” as a meaningful courtesy title, inasmuch as it means little more than the intersection of “alive” and “citizen-shareholder”.
But, hey, if you need something to beat officious airport security flunkies over the head with at the ass end of the galaxy, it sounds mighty impressive.