The doctrine that society is founded on a contract between the people and the government is of medieval origin. It was often supported by references to the Old Testament, which contains a similar view in an unreflective form. It is found in most of the great political writers of the sixteenth century; in Buchanan, and in the writings of James I : it persists into the seventeenth in the works of Grotius and Puffendorf. Grotius is sometimes held to have stated the theory so as to admit both forms of contract; but it is clear that he is only thinking of the first form as admitting democratic as well as monarchical government. We find it put very clearly by the Convention Parliament of 1688, which accuses James II of having “endeavoured to subvert the constitution of the kingdom by breaking the original contract between king and people.” While Hobbes, on the side of the royalists, is maintaining the contract theory in its second form, the Parliamentarian Algernon Sidney adheres to the idea of a contract between the people and the government.