Hello,
We already talked about the Trebizond Empire and the Latin Empire lately, so I checked the Byzantine coins and noticed we have some coins minted under the Empire of Nicea as well.
Coins minted by Theodore I Laskaris ( https://en.numista.com/catalogue/pieces131924.html ) and John III ( https://en.numista.com/catalogue/pieces131958.html and https://en.numista.com/catalogue/pieces93284.html ) should be moved under this issuer.
We can link this issuer to the Byzantine Empire, Trebizond Empire, the Crusader States and the Despotate of Epirus.
About the map : Turkey.
Macedonia was conquered at the end of the Empire, as well as the Thessalonica and the South of the Bulgaria, so I'm not sure if we had them too.
Flag : https://fr.wikipedia.org/wiki/Empire_de_Nic%C3%A9e#/media/File:Lascaris-Arms.svg