The tryal of William, Viscount Stafford for high treason [electronic resource] : in conspiring the death of the King, the extirpation of the Protestant religion, the subversion of the government, and introduction of popery into this realm, upon an impeachment by the knights, citizens, and burgesses in Parliament assembled, in the name of themselves and of all the Commons of England : begun in Westminster-Hall the 30th day of November 1680, and continued until the 7th of December following, on which day judgment of high treason was given upon him, with the manner of his execution on the 29th of the same month.

Stafford was found guilty of being a part of the "Popish plot", an alleged conspiracy, asserting the English Catholics were trying to replace King Charles II with James, his Catholic brother. He was later executed.