Tipoff letter to thwart Guy Fawkes’ gunpowder plot to go on display

Anonymous letter warned Lord Monteagle not to attend opening of parliament on 5 November 1605

More than six centuries after Edward III first enshrined the crime of treason in English law, the letter that thwarted one of the most infamous acts in the nation's history is to go on public display.

The anonymous Monteagle letter", of 26 October 1605, warned the peer Lord Monteagle not to attend the opening of parliament on 5 November, for they shall recyeve a terrible blowe this parleament and yet they shall not seie who hurts them".