waait

before I continue why this concept is so similar with a BL manga I've read
a white skinned bride from a snowy country, betrothed to a desert heir who apparently still a kid. but the desert county isn't peaceful so the heir got missing and then they got separated for a while until the boy grown up
it's only twice i read something like this, but it's funny it happened twice.
sooo is this actually a thing?? is this concept actually popular