By the way, does the High Human Kingdom on the continent have a specific name? Because I imagine it’s not the only human kingdom on the continent—it would be way too generic to just call it “High Kingdom.” And what would be the family surname of that kingdom’s royalty? We know Rose’s is Almistra, but we should remember that King Flavian was the brother of the former queen of the High Kingdom when the civil war between the two of them broke out. So, do Rose and the High Kingdom’s royal family share the same surname, or is it a different family name?
It's actually "High Kingdom". Rather than being generic, I wanted it to convey confidence, borderline arrogance. Their kingdom is the only one worthy of consideration, so much so that it's literally been given the name "kingdom" as if it was the only one on the continent and it solely applied to their land, and then the adjective "high" to underline its noble superiority.
Besides, there aren't a whole lot of other kingdoms we know of to be honest. The high elves have a queen, the tribe elves have... well, tribes, and we're don't know about the other races yet.
As for King Flavian, he used to be the actual king of High Kingdom, but his half-sister drove him out to the sea. The half-sister founded her own dynasty with her own name to entrench her own power. So no, they do not share the same name, although we do not know the name of the dynasty on the continent.