Kaiser Tits

the EMPIRE
Emperor / Empress / King-Emperor / Queen-Empress / Kaiser / Tsar

Latin, 'imperator,' which was originally a military title
Augustus, a Roman honorific which means 'Venerable' or 'Majestic

High king / High queen
King / Queen

Archduke / Archduchess
Grand prince / Grand princess

the REPUBLIC
Grand duke / Grand duchess
Prince-elector / Prince / Princess / Crown prince / Crown princess / Foreign prince / Prince du sang / Infante / Infanta / Dauphin / Dauphine / Królewicz / Królewna / Tsesarevich / Jarl

the Sovereign
Duke / Duchess / Herzog / Knyaz
Sovereign prince / Sovereign princess / Fürst / Fürstin / Boyar ---

Monarch and Sovereign

monarch is derived from the Greek μονάρχης, monárkhēs, "sole ruler" (from μόνος, mónos, "single" or "sole", and ἄρχων, árkhōn, archon, "leader", "ruler", "chief", the word being the present participle of the verb ἄρχειν, árkhein, "to rule", "to lead", this from the noun ὰρχή, arkhē, "beginning", "authority", "principle") through the Latinized form monarcha.
The word sovereign is derived from the Latin above.
Autocrat is derived from the Greek αὐτοκράτωρ: αὐτός ("self") and κρατείν ("to hold power"), and may be translated as "one who rules by himself".

Frontier TERRITORY
Marquess / Marquis / Marchioness /Margrave / Landgrave / Marcher Lord
/ Count palatine

COUNTY
Count / Countess / Earl / Graf / Châtelain / Castellan

Viscount / Viscountess / Vidame / Burgrave

the eSTATE
Baron / Baroness / Freiherr / Advocatus / Lord of Parliament / Thane / Lenderman

Baronet / Baronetess / Scottish Feudal Baron / Scottish Feudal Baronetess / Imperial Knight

the SOLIDER (title is dead when one dies)
Eques / Knight / Chevalier / Ritter / Ridder / Lady / Dame / Edelfrei / Seigneur / Lord

the STAFF (administration)
minor nobility or gentry
Patricians
Gentleman / Gentry / Esquire / Laird / Edler / Jonkheer / Junker / Younger / Maid
Ministerialis

ENLISTED
squire
page
choir boys

https://en.wikipedia.org/wiki/Imperial,_royal_and_noble_ranks