La Principessa

I’ll ignore republic rulings because I have discussed it before(1). I’ll keep to principalities, and how they can be preserved. Well, first of al I have to say that heridetary positions of power are a lot easier to preserve than new ones. The Princess only has to make sure she preserves the order maintained by her ancestors and react properly to happenings around her. Like you do! This way, assuming she has access to average energy ,she will always be able to preserve her position, unless another unusual powerful force robs her of it. And in this last case she will be able to easely reclaim it.

Like the Princess of Ferrara here in equestria, who was only able to withstand the attacks of the seaponies and the Papal Princess because she had grown together with the land(2). Because somepony who has been traditionally in power of a region has less necessaty to act violently against her subjects. And it is because of this that she is loved. So it is logical that, unless grave crimes make her infamous, she is loved automatically by her subjects. On top of that do the oldness and continuity of de rulership cause novelty and it’s reasons to be forgotten. Because one change always lays the foundation of the next.

(1) Sparkle wrote of this in her first book Discorci, in wich she mentions the earth pony system of ancient time.

(2) Sparkle means that the Princesshood of Ferrara survived despite the humiliating peace treaty Princess d’Este had to sign with the seaponies of Venice and the fact that later The Grand Papal Princess robbed her of almost all of her lands.