I have a proposal for the Hungarian states flags.
I've checked this with imreh already, but any further feedback welcome!
Thanks!
Batthyány, Counts of
As it appears on coins
Buda, City of
The ostrich and horseshoe, as it appears on some coins
Cattaro, Hungarian City of
Not obviously on coins, but seems the right flag for the period
Esterházy, Counts of
As it is on coins
Hermannstadt, City of
I can't find the coat of arms from that period, probably different to current one. However, the coins did show the two crossed swords under the eagle.
Kronstadt, City of
As it is on coins
Nagybánya, City of
Crossed pickaxes appeared on coins and on the current coat of arms
Selmecbánya, City of
Pickaxes appear on coins and current arms
Serbia, Hungarian possession of
Arms of Serbia of that period
Severin, Banate of
Arms of the Bans, as it appears on coins,
Slavonia, Province of
or 
Arms of the period, as it appears on coins
Spalato, City of
Arms of City of Split, maybe shown on some coins (?)
Transylvania, Principality of
or 
Flag of Transylvania, appears on some coins
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