Are you trying to tell me that Naples and Liverpool aren't national capitals?
Oh no, it makes sense. After all, the heir to the British throne dose carry the title
Prince of Wales, so having the Capital near Wales is very reasonable.
As for Naples it takes a longer stretch but it is also conceivable. Now Naples is situated between Vesuvius and the Phlegraean Fields. A settlement right on top of essentially a supervolcano, there is only one logical answer to that: the Lair of a Supervillain!
Now with Chinese Noodles vs Italian Pasta, Chinese Takeout vs Pizza, as far as cuisine goes Italy
is a supervillain for China.
So for them it is only natural to place the Italian capital there.
By this the Romanian capital in Transsylvania is also a sound choice, only for Sweden and Bulgaria I have yet to come up with a answer.
In the meantime have an Arabian map about WWII from Jordan (according to reddit)