My idea was that he'd be from a really small kingdom with no significant power at all, and that his role in the colony would be more like an ambassador, rather than someone with the intention to rule. Furthermore, I'm planning for him to be the youngest of many siblings, so even in his own kingdom, he doesn't have any real power. So my intention with this character isn't to disturb the power balance, but rather to have him there as an ambassador or diplomat.

But still, I see your point, and will of course respect the GM's decision to decline this concept if it comes to that.