So I've been playing my first real game nice and slowly as the Duke of Connacht and I've managed to conquer most of the British isles. Problem is, my county holdings are all concentrated in Northern Ireland, where the counties are tiny and can't grow any larger. I want to shift my core holdings and capital to southern England based around my control of Essex/Wessex, but I don't know how. How do you 'move' your capital to another county if at all?