[quote=@OfWindAndRain]- not unless the island on the shown map has at least... five different states on it.[/quote]
On the subject of scale, I'm envisioning the map as about the size of Europe. Which would make the Crownlands the size of France and Germany combined, and each of the provinces about the size of Switzerland or Austria, with space for several large settlements and abundant land around them.

Some would be open with plenty of fertile soil [color=gray](like France)[/color], while others would be mostly mountainous [color=gray](like Switzerland)[/color], or covered with dense forests [color=gray](like medieval Britain.)[/color]

This would make 'Pridania' about the size of Spain, which did have many city states until forming a unified government in 1492.
[sub][color=gray](They actually started the process in either 718 or 722, depending on which historical reference you refer to, but most agree that they completed the [url=https://en.wikipedia.org/wiki/Reconquista][i][color=silver]Reconquista[/color][/i][/url] in 1492, shortly before the Age of Discovery.)[/color][/sub]