I would call it "Mine"!
I have my mini-republic. My very own 0.13ha, with bijou palace and outbuildings!
Abt 50 metres from my eastern boundary is my moat a creek, & 800 metres from my (admittedly high) back fence is the northern part of my moat a river. The land between my boundary & the river is perpetual agricultural floodplain, and cannot be built upon. I have one side neighbour, and a 90metre-odd easement at the front - so 3/4 natural boundaries for my mini-republic! Front gates are the drawbridge, inner gates the portcullis - if the gates at the front are open, the drawbridge is down - if the gates are shut, woe betide any varlet, brigand or JW who crosses the threshold!!
Actually, I rather fancy something regal - Ria, perhaps (being female). Having only a small kingdom, I will forego the "Ard"!