All states and dominions which hold or have held sway over mankind are either republics or monarchies. Monarchies are either hereditary ones, in which the rulers have been for many years of the same family, or else they are those of recent foundation. The newly founded ones are either entirely new, as was Milan to Francesco Sforza, or else they are, as it were, new members grafted on to the hereditary possessions of the prince that annexes them, as...