"The Tenure of Kings and Magistrates" immediately influenced the political works and theories of many others, including Bulstrode Whitelocke, John Canne, John Lilburne, John Twyn, and various anonymous works. The amount of attention that the work received prompted John Shawcross to declare that the work, itself, allowed Milton to be viewed as a "great writer". Later on, the work was able to influence others without them knowing; a piece by Algernon Sidney, which copies words directly from "The Tenure of Kings and Magistrates", influenced various tracts and many responders to Sidney did not know that the lines were originally from Milton.