How to name places?
I remembered this while reading your thread : https://i.imgur.com/t6pPVSy.jpg
Explanation: In a Europa Universalis 4 game, English Mexico, a former English colony, decided to invade Japanese Japan.
Hence the great name of English Mexican Japan. Probably the worst name I've seen in the game so far.

Yes, Westeros = War of the roses, using Irish geography. There are a few in dept analysis on Youtube about it. It goes really deep but as you said, dragons make us forget about it.

The absence of a large Africa proxy is a fair point.
At least you included Atlantis.