Talk:Melanie Malachite/@comment-3441749-20190818211353/@comment-29684190-20190818224244

Some smaller kingdoms in europe had basically a heir exchange program. Basically to expand the horizon of the prince/princess, teach thm new things.... and a protection from getting attacked by the other kingdom.

I would guess that it's some of those. Building a tight alliance, getting to learn about the world, picking up new tricks.