The Zhu empire kind of does and kind of doesn't. They are all from one planet, but a long time ago a mystical issues happened and most of there land masses were displaced. Now they kind of own several landmasses randomly dotted across a few planets, that they travel between through star gate type portals (building airport like buildings around it) the one the empress lives in is still on their original planet and is really the only planet that matters to them. They don't own any entire planet, as they only take land that their religion speaks of (they can only raise children in those lands, for biological reasons)