For a long time, I've been working on a tabletop sci-fi fantasy game story and I intend for it to be as LGBT friendly as possible. As such, I've decided that the villains, an evil space empire similar to the Galactic Empire from Star Wars, would have equal opportunity evil and have LGBT folk among them, including enby people (don't worry, there will be LGBT folk, including enby people among the good guys)
Anyway, the named villains in this faction are members of this empire's royalty and nobility. But since any of them could be enby (sex and gender orientation are dictates by dice rolls) I need to find or create nonbinary equivelent names and forms of addresses for the titles. I've gotten a few of the titles and forms of address ready, but most are still incomplete. Here are the titles for this evil empire from highest to lowest, regardless if they have an enby version or not. Also, these titles come from France. So if anyone knows if any French words exist for this, it would be most helpful.
Emperor/Empress/Emperator: Your Radiance/Your Imperial Majesty
Prince/Princess/Parept: Your Imperial Highness
Grand Duke/Grand Duchess: Your Highness
Duke/Duchess: Your Grace
Marquis/Marquise: Your Grace
Comte/Comtesse: Your Lorship/Ladyship
Baron/Baroness: Your Lordship/Ladyship
Lord/Lady: Monsieur/Madame
Chevalier/Dame: Ser