Noble
Knight and Dame
Baronet and Baronetess
Baron and Baroness
Viscount and Viscountess
Earl/Count (depending on British/Continental) and Countess (Earless sounds and looks wrong
)
Marquis/Marquess and Marquise/Marchioness (same as Earl/Count but Continental/British)
Duke and Duchess
Grand Duke and Grand Duchess
Archduke and Archduchess
Prince and Princess (Of the Blood) - anyone who was related to the Sovereign except its Wife/Husband, Children, Parent(s), Children's Children and so on. Think Brothers and Sisters...
Prince and Princess - Occasionally the Wife/Husband of the Sovereign but usually just their Children
Prince Royal and Princess Royal - The Heir to the Throne, often given a specific Principality IE The Black Prince, The Prince of Wales or occasionally given a specific Duchy as well, Duke of Buckingham, Duke of Bragança
King and Queen
High King and High Queen - Only used in early medieval if at all, think Dark Ages to long long before the War of the Roses.
Emperor and Empress
None of them really suit a City Lord.
Alternatives:
Demotions:
City/Stronghold = Marquis
Towns = Count
Rurals/Woodlands = Viscount
Everything Else = Mastercard or Baron
Or
Use something else, Lord Mayor (City of London), Lord Castellan, Castle, Governor...
Or Elector - put something like Elector Count or Elector Marquis or similar - Elector comes before the rank. Or make it like the old HRE so (taking Luria as an example) Elector of Askileon, Elector of Poryatown, Elector of Shinnen, Elector of Giask, Elector of Tomscity
Would not work for those holding a Stronghold - they should be called Lord Castellan.
Palatine - put something like Earl Palatine, Marquis Palatine - Palatine comes after the rank.
Hmmm new System:
Region - Title - Form of Address
Cities - Elector of Tomscity - Elector Tom
Alternative City - Lord Palatine of Tomcity - Lord Palatine Tom
Strongholds - Lord/Lady Castellan of Tomhold - Lord Castellan Tom
Townslands - Marquis/Marquise of Tomsville - Marquis Tom
Rural - Count/Countess of Tomsfarm - Count Tom
Woodland - Viscount/Viscountess of Tomforest - Viscount Tom
Mountains and others - Baron of Mount Tom - Baron Tom