Mary's character
Mary did much to bring about her own downfall. She shocked many by her behaviour as Queen of Scotland, insisted at every opportunity that she was Elizabeth's heir, and could not resist being involved in Catholic plots against Elizabeth's life and throne. This was a dangerous game to play, and sooner or later it was likely that she would go too far.

Mary's claim to the English throne
Mary's claim to the English throne placed her on a collision course with Elizabeth and her government. The claim was valid as long as Elizabeth remained unmarried and had no children. This caused alarm in Protestant England because Mary was a Catholic. Therefore, from the moment Mary arrived in England, Elizabeth resisted calls for Mary's execution in the 1570s on the grounds that Mary, like herself, was a Queen chosen by God. However, the pressure continued to mount - particularly when it became clear that Elizabeth was too old to bear children.

Mary's involvement in Catholic plots
Mary foolishly allowed herself to be drawn into several Catholic plots during her imprisonment in England. She denied knowledge of the earlier plots. However, the Throckmorton Plot of 1583 and the Babington Plot of 1586, provided Walsingham with the evidence he needed to condemn Mary. Mary's involvement in these plots caused such a build-up of outrage against Mary that Elizabeth found it increasingly difficult to resist demands for her death.

Last moves: Elizabeth's role
At first, Elizabeth seemed to hesitate. Mary was pronounced guilty on 29th October 1586 but Elizabeth did not sign the death warrant until 1st February 1587. Even then, she ordered her secretary, William Davison, not to let it go. However, she may have finally given in to the mounting pressure for Mary's death by arranging for the warrant to be sent to Fotheringay 'without her knowledge' - thus removing any blame from herself for Mary's execution.

The Bond of Association
The murder of William of Orange in 1584 produced a real fear that Elizabeth would be the next victim of a Catholic assassin. Members of the Privy Council were so alarmed that they all signed the Bond of Association. The Bond threatened the life of anyone who might benefit from a plot against the Queen's life, so it was clearly aimed against Mary and placed her in a much more dangerous position than before.

Last moves: The Babington Plot
It was the Babington Plot that set in motion the final sequence of events in Mary's life because of the evidence it provided of her treason. Elizabeth really had no choice but to order a trial and this could only have one outcome. The nature and speed of the trial - Mary was not allowed to see any of the letters used to condemn her, or to question any of the witnesses who had testified against her - shows how determined her enemies were to destroy her.

Mary's Catholic connections
Mary had powerful Catholic allies in Europe, such as Philip of Spain or the Duke of Guise in France, who believed that Elizabeth was illegitimate and that Mary was the rightful Queen of England. Therefore, as long as Mary remained alive and in captivity, there was always a danger of Catholic plots to overthrow Elizabeth, or of actual invasion by Spanish or French forces. To men like Cecil and Walsingham, the best way of protecting Elizabeth was by removing Mary.

War with Spain
Before 1585, Elizabeth could claim that Mary's execution would anger Philip of Spain to the point where he might declare war on England. When war did eventually break out for other reasons in 1585, there was no longer any political reason for keeping Mary alive. This made it easier for Elizabeth to dispose of Mary and helps to explain why more decisive action was taken against her after the Babington Plot of 1586.

Last moves: Burghley's role
In the end, Mary's fate seems to have been decided by Burghley and the Council rather than by the Queen. The Council had been demanding Mary's death for many years - this was too good an opportunity to miss. It was Burghley who persuaded Davison to hand over the signed death warrant and Burghley who organised its delivery to Fotheringay.

T he way we explain the reason for Mary's execution depends on what we are trying to explain. Usually we use long, medium and short-term reasons to explain an event in history because each one on its own only gives part of the explanation.

On the right - stacked on top of each other - are a number of long, medium and short-term factors that led to Mary's execution. First, decide which are the short-term or 'trigger' factors and move them into the relevant boxes below. Then, link each 'trigger' back to its matching medium and long-term factor. You should end up with a three-part explanation of why Mary Queen of Scots was executed.

 
Trigger   Trigger   Trigger
       
Medium-term   Medium-term   Medium-term
       
Long-term   Long-term   Long-term