On the planet? In the kingdom?
I have managed to avoid the "Raining on Mungo" syndrome. Even the smallest of the seven worlds in this system has over a hundred kingdoms -- principalities, commonwealths, whatever -- and the two largest have, I think, over a thousand.
This would make it rather more logical for them to think of their home kingdoms rather than their home planets. Of course, that gives me a powerful need to connnect planets to places before whatever incident it was, and if the reader doesn't pick up on that, it means the clue to the planet is missed. . . .
Unless it's common to several kingdoms. Hmmm. Hmmm. Hmmm. One could definitely do it for the sky color, but even food is possible -- assuming, of course, that the character traveled on planet as well as off planet. . . .
Such are the things that need to be thrashed out!