Background
Born in about 1567, Francis Tresham was the eldest son of Sir Thomas Tresham, of Rushton Hall in Northamptonshire, and Meriel Throckmorton, daughter of Sir Robert Throckmorton of Coughton in Warwickshire
Born in about 1567, Francis Tresham was the eldest son of Sir Thomas Tresham, of Rushton Hall in Northamptonshire, and Meriel Throckmorton, daughter of Sir Robert Throckmorton of Coughton in Warwickshire
According to the antiquary Anthony Wood, Tresham was educated in Oxford at either St John's College or Gloucester Hall or both, although biographer Mark Nicholls mentions that there appears to be no other evidence to corroborate that claim.
In 1596 he was arrested on suspicion together with Catesby and the two Wrights during an illness of Queen Elizabeth.
He was one of the promoters of the mission of Thomas Winter in 1602 to Madrid to persuade the king of Spain to invade England.
On the death of Elizabeth, however, he, with several other Roman Catholics, joined Southampton in securing the Tower for James I. Tresham was the last of the conspirators to be initiated into the Gunpowder Plot.
According to his own account, which receives general support from Thomas Winter's confession, it was revealed to him on the 14th of October 1605.
Inferior in zeal and character to the rest of the conspirators, he had lately by the death of his father, on the 11th of September 1605, ' inherited a large property and it was probably his financial support that was now sought.
Moreover, he had two brothers- in-law, Lords Stourton and Monteagle, among the peers destined for assassination.
He expressed his dislike of the plan from the first, and, according to his own account, he endeavoured to dissuade Catesby from the whole project, urging that the Romanist cause would derive no benefit, even in case of success, from the attempt.
All the evidence now points to Tresham as the betrayer of the plot, and it is known that he was in London within 24 hours of the despatch of the famous letter to Lord Monteagle which revealed the plot (see Gunpowder Plot).
In all probability he had betrayed the secret to Monteagle previously, and the method of discovery had been settled between them, for it bears the marks of a prearranged affair, and the whole plan was admirably conceived so as to save Monteagle's life and inform the government, at the same time allowing the conspirators, by timely warning, opportunity to escape (see Monteagle, William Parker, 4th baron).
Tresham avoided meeting any of the conspirators as he had agreed to do at Barnet, on the 29th of October, but cn the 316t he was visited by Winter in London, and summoned to Barnet on the following day.
There he met Catesby and Winter, who were prepared to stab him for his betrayal, but were dissuaded by his protestations that he knewnothing of the letter.
His entreaties that they would give up the whole project and escape to Flanders were unavailing.
After the arrest of Fawkes on the night of the 4th Tresham did not fly with the rest of the conspirators, but] remained at court and offered his services for apprehending them.
For some days he was not suspected, but he was arrested on the 12th.
On the 13th he confessed his share in the plot, and on the 29th his participation and that of Father Garnet in the mission to Spain.
Shortly afterwards he fell ill with a complaint from which he had long suffered.
On the 5th of December a copy of the Treatise of Equivocation, in which the Jesuit doctrine on that subject was treated, was found amongst his papers by Sir Edward Coke (see Garnet, Henry).
From the lessons learnt here he had evidently profited.
On the 9th of December he declared he knew nothing about the book, and shortly before his death, with the desire of saving his friend, he withdrew his statement concerning Garnet's complicity in the Spanish negotiations, and denied that he had seen him or communicated'with him for 16 years.
He was now classed with the other conspirators, and though he had never been convicted of any crime or received sentence, his corpse was decapitated and he was attainted by act of parliament.
He married Anne Tufton, daughter of Sir John Tufton of Hothfield in Kent, in 1593. The couple had three children.