Scaling up a Magocracy?

We have lots of titles for real world rulers and land owners "emperors, kings, barons, dukes" but when it comes to magic power the terminology for rank is rather sparse. While a magocracy is a government that specifically ranks their officials by power and gives them authority based on that power.

- Traditional literature gives us Apprentice→Wizard→Archwizard - Druids have been hierarchied into Druids and Archdruids - Shamans sometimes have ranks, but the term is applied so slapdash to different cultures that using any real world ranks is always wrong

Magocracies and their hyrarchies in literature are often based on academies, though sometimes you get a citystate with a sorcerer-king or a wizard-king, but I've not got any sources of inspiration where it grows bigger than that.

What is a title for the baron of an outlying territory, that sounds appropriate for a magocracy? What does the apprentice studying at a magical university call the sorcerer that created the demi-plane the apprentice has never been outside of? What does that apprentice call the oracle tasked by that sorcerer to manage the local governments on that continent sized demi-plane?

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Real world titles for officials are often based on the size of the area they have authority over; for example district-judge vs. supreme-court-judge. But in a magocracy, skill at magic is directly linked to whom you have authority over not to a geograpical location... meaning they are closer to military ranks than governmental ones I suppose.

#### [TLDR]: **I need to figure out a vocabulary for mages of any rank (and a variety of powersources) to talk about their superiors and inferiors in an easily understandable way, that still sounds appropriately mage-like.**

Does anybody have any sources or ideas to help?