>>42439
I dunno if Hungary was used some kind of a template for Gondor, or at least some characteristics were used. I heard comparisons with Rohan due to the horse centered lifestyle there. And ofc seen that map which projects Europe and Middle Earth upon each other and stretched so Mordor falls together the Carpathian basin.
In mirror translation Fehérvár = White Castle; Belgrade is sames ofc, I'm breddy sure no surprises there for you. We had three White Casles/Fehérvár during our history, two you already mentioned (Székesfehérvár, Nándorfehérvár), the third one in Transylvania, Gyulafehérvár.
Székes = place with the ruler's seat
Nándor = Bulgars at the Danube
Gyula = a rank and/or name; we aren't exactly sure, it seems a line of rulers of Transylvania had this title/name during the 10-11th centuries.
Note: castle = vár; city = város.
Anduin = Duna? Could be.
That governor thing could also be true.
I'm gonna ask people who are more familiar with Tolkien's complete work.