Huh. I don't think separate kingdoms ever occurred to us as a solution. You and your siblings were obviously much more skilled in diplomacy. Most of the games I remember playing were more of the explorer or escaping rebel genres, anyway. I don't know if the princess thing just wasn't that big in Europe when I was growing up or if it just personally passed me by.

Queen = Mom works, I think. By definition princesses are children of a king and queen, so it makes sense giving your parents those roles.