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legal term for various acts of disloyalty. The English law, first clearly stated in the Statute of Treasons (1350), originally distinguished high treason from petit (or petty) treason. Petit treason was the murder of one's lawful superior, e.g., murder of his master by an apprentice. High treason constituted a serious threat to the stability or continuity of the state. It included attempts to kill the king, the queen, or the heir apparent or to restrain their liberty; to counterfeit coinage or the royal seal; and to wage war against the kingdom. Especially cruel methods were used in executing traitors. Court decisions developed the English law of treason into an instrument for suppressing resistance to governmental policy. Any degree of violence in expressing opposition to parliamentary enactments was held to be a levy of war and a threat to the king's life. In the 19th cent., the English law was reformed; petit treason was abolished, cruel methods of executing traitors were forbidden, and many types of treason (e.g., counterfeiting) were made felonies that involved a lesser penalty than death. To avoid the abuses of the English law, treason was specifically defined in the U.S. Constitution (definitions of other crimes were not deemed necessary). Article 3 of the Constitution thus provides that treason shall consist only in levying war against the United States or in giving aid and comfort to its enemies and that conviction may be had only on the testimony of two witnesses to the same overt act or on confession in open court. There have been fewer than 40 federal prosecutions for treason and even fewer convictions. Several men were convicted of treason in connection with the Whiskey Rebellion (1794) but were pardoned by George Washington. The most famous treason trial, that of Aaron BurrBurr, Aaron,
1756–1836, American political leader, b. Newark, N.J., grad. College of New Jersey (now Princeton). Political Career

A brilliant law student, Burr interrupted his study to serve in the American Revolution and proved himself a valiant soldier in
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 in 1807, resulted in acquittal. Politically motivated attempts to convict opponents of the Jeffersonian Embargo Acts and the Fugitive Slave Law of 1850 all failed. In the 20th cent., treason has become largely a wartime phenomenon, and the treason cases of World Wars I and II were of minor significance. Most states have provisions in their constitutions or statutes similar to those in the U.S. Constitution. There have been only two successful prosecutions for treason on the state level, that of Thomas Dorr in Rhode Island and that of John Brown in Virginia.


See M. Boveri, Treason in the Twentieth Century (tr. 1961); J. W. Hurst, The Law of Treason in the United States (1971); C. Pincher, Traitors (1987).


See also Treachery.
Arnold, Benedict
(1741–1801) American Revolutionary general who plotted surrender of West Point to British. [Am. Hist.: Benét, 52]
Burgundy, Duke of
fights for English, then joins French. [Br. Lit.: I Henry VI]
Carne, Caryl
traitor to country. [Br. Lit.: Springhaven]
Christian, Colonel William
executed for treason. [Br. Lit.: Peveril of the Peak, Walsh Modern, 96]
“a most toad-spotted traitor.” [Br. Lit.: King Lear]
Nolan, Philip
deserts the U.S. Army to join Burr’s conspiracy. [Am. Lit.: Hale The Man Without a Country in Magill I, 553]
Quisling, Vidkun
(1887–1945) Norwegian fascist leader; persuaded Hitler to attack Norway. [Nor. Hist.: Flexner, 444]
seat of collaborationist government after German occupation (1941). [Fr. Hist.: Brewer Dictionary, 1128]
Wallenstein, Count
powerful German general in Thirty Years’ War who corresponded with the Swedish enemy. [Ger. Drama: Schiller Wallenstein in Magill II, 1119]


violation or betrayal of the allegiance that a person owes his sovereign or his country, esp by attempting to overthrow the government; high treason
References in periodicals archive ?
And it will become a treasonable offence not to laugh at the king's wacky character, as epitomised in the huge banner that now hangs over Buckingham Palace: "You don't have to be mad to rule here.
200 YEARS AGO: On Wednesday, at Leicester, Pares, a bookseller, and Gilbert, a tinman, were apprehended for treasonable practices; but some of their accomplices found means to escape the officers.
Whereas we have reason to apprehend that divers persons engaged in the treasonable conspiracy against us in our kingdom in Ireland, which lately manifested itself in open acts of rebellion and war against us in our said kingdom, have not abandoned their treasonable designs against us, and acting in concert with our foreign enemies, are preparing to assist our said enemies in an invasion of our kingdoms, and for that purpose are endeavouring to incite and stir up rebellion and war against us in this kingdom; we have therefore thought it necessary for the safety of our kingdoms, to prevent all persons engaged in such treasonable designs from passing from our said kingdom of Ireland to this kingdom.
Wilf revealed for the first time that on that occasion, the Queen turned to Parker and said: "Tell me Michael, is it a treasonable offence to burn the royal standard?
Misprision of treason is the legal term for hiding knowledge of treasonable intent.
The treasonable moment came, I can reveal, when the Queen was shaking hands with a line-up of stars after a Royal Variety Performance.
Mr Hogg explained: "This is explosively treasonable stuff.
The venue was a giant marquee next to Tower Bridge, a suitable location given our treasonable thoughts.
Now we are being told that an act such as the murder of a member of the security forces is no longer a treasonable act, it is almost a political act.
Other treasonable offences include "compassing or imagining the death of our lord the King or our lady his Queen".
Kanu, Chidiebere Onwudiwe, Benjamin Madubugwu and David Nwawuisi, are currently facing an amended 6-count charge bordering on a treasonable felony, terrorism and illegal possession of firearms, preferred against them by the Federal government.