Military/Noble rankings

Military rankings:

The marines use army rankings, spacecraft personnel use the air force, and naval forces use navies.

https://en.wikipedia.org/wiki/Military_rank if you want to look into the ranks more.

As for noble titles, from lowest to highest:

Knight/Dame (Usually commoners who got a noble title, the title is not inheritable. But usually the eldest child is given the title by his liege lord.)

Lord/Lady (Unlanded nobles and/or children of landed nobles. Any and all of noble blood without lands to call their own will be referred to as such.)

Baronet/Baronetess (A Baronet could be in charge of a city in the core, or entire continents on the fringes. Lowest of noble titles)

Baron/Baroness (Could be in charge of a continent in the core, or an entire world on the fringes.)

Viscount/Viscountess (Could be in charge of a world in the core or an entire star system in the fringe.)

Count/Countess (Could be in charge of a couple of star systems in the core, and upwards to, if not a bit more than, a dozen star systems. (Countess Philicia Lauritzen officially controls 14 star systems. She has no vassals.))

Margrave/Margravine (Could be in charge of a dozen star systems in the core, or upwards to dozens of them in the fringe.)

Duke/Duchess (In charge of hundreds of star systems. There are only 12 of them within the Unbroken Empire.)

Prince/Princess (Not in command of any land, but as the direct descendant of the Emperor/Empress, has the right to command any noble within the Unbroken Empire.)

Emperor/Empress (Owns the Galaxy. (The rumours of hostile nations in existence outside of the Unbroken Empire are a lie, I tell you.))