17th century British Member of Parliament
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  • Algernon Sidney

    Algernon Sidney or Sydney (14 or 15 January 1623 - 7 December 1683) was an English politician and member of the Long Parliament. A republican political theorist, colonel and commissioner of the trial of King Charles I of England, he opposed the king's execution. Sidney was later charged with plotting against Charles II, in part based on his work, Discourses Concerning Government, used by the prosecution as a witness at his trial. He was executed for treason. After his death, Sidney was revered as a "Whig patriot–hero and martyr".


    Sidney, Algernon (1623-1683) | Encyclopedia of Libertarianism, by Aaron Steelman, The Encyclopedia of Libertarianism, 15 Aug 2008
    Biographical essay
    "Algernon Sidney was a statesman and philosopher. Sidney is best known for conspiring to rebel against Charles II of England and for his subsequent beheading for his participation in activities against the king. However, his primary significance lies in the political theory he offered in his book Discourses Concerning Government, published posthumously, which was of tremendous influence in the American colonies. ... According to one study, Sidney's Discourses Concerning Government was the third most common political book in colonial libraries, behind only John Trenchard and Thomas Gordon's Cato's Letters and John Locke's Two Treatises of Government."


    Jan 1623, in Penshurst Place, Kent, England


    7 Dec 1683, in London

    Web Pages

    Algernon Sidney - Online Library of Liberty
    Includes portrait, short biography,links to two editions of Sidney's Discourses Concerning Government and selected quotations
    "Algernon Sidney (1622-1683) was a radical English republican political theorist who challenged Filmer’s theory of the divine right of kings. He was executed for treason in 1683."


    Algernon Sidney: Forgotten Founding Father, by Chris Baker, The Freeman, Oct 1997
    Biographical essay discussing also Sidney's political theories and his influence in the American colonies
    "Algernon Sidney (also Sydney) was an English martyr for republican government. He was executed in 1683 for allegedly conspiring to kill King Charles II; his political writings were used as 'evidence' against him. His uncompromising spirit inspired both the Glorious Revolution of 1688 and the American Revolution of 1776. ... Sidney was a pioneer in natural rights theory. 'The common Notions of Liberty are not from School Divines, but from Nature . . .,' he declared. ... John and Samuel Adams, George Mason, James Madison, and Benjamin Franklin all acknowledged Sidney's influence on American political thought."
    The Growth of Libertarian Thought, by Murray Rothbard, Conceived in Liberty
    Volume II, Part II "Intercolonial Developments", Chapter 33: Starts by considering the influence of English writers Sidney and Locke and then considers Trenchard and Gordon's Cato's Letters
    "Algernon Sidney was one of the leading theorists of the Republican movement in seventeenth-century England. ... Revolution to Sidney was not an evil but the people's great weapon for the overthrow of tyranny ... There was nothing sacred about governments, which on the contrary should be changed as required."
    Related Topic: John Locke

    Books Authored

    Discourses Concerning Government, 1698
    Partial contents: To depend upon the will of a man is slavery - God leaves to man the choice of forms in Government - That 'tis natural for Nations to govern, or to choose Governors - Government is not instituted for the good of the Governor
    Related Topic: Government

    The introductory paragraph uses material from a Wikipedia article, which is released under the Creative Commons Attribution-Share-Alike License 3.0.