This volume is a sequel to the author’s earlier work on the development of European theories of sovereignity and constitutionalism. Professor Franklin here explains a major innovation associated with the English Civil Wars. It was only now, he shows, that there finally emerged a theory of sovereignity and resistance that was fully compatible with a mixed constitution. The new conception of resistance in a mixed constitution was to enter the main tradition via Locke, who stood alone among major writers of the 1680s in holding that the effect of tyranny by any constituted power, even by the King alone, was entire dissolution of the government and the reversion of power to the general community. When this familiar position is read against the background of preceding constitutionalist theory, the Second Treatise reveals a new dimension of novelty and historical significance.