Elizabeth I: Succession, Mary Queen of Scots & Catholic Plots (AQA A Level History: Component 1: Breadth study): Revision Note

Exam code: 7042

Lottie Bates

Written by: Lottie Bates

Reviewed by: Bridgette Barrett

Updated on

Summary

  • Elizabeth refused to marry or name a successor throughout her reign, insisting the succession was a matter of royal prerogative

  • Mary Queen of Scots arrived in England in 1568 after fleeing Scotland

    • She became a prisoner and a constant focus for Catholic plots against Elizabeth with Mary

  • Three major plots centred on Mary: the Ridolfi Plot (1571), the Throckmorton Plot (1583) and the Babington Plot (1586)

  • Elizabeth delayed signing Mary's death warrant, but she was finally executed at Fotheringhay Castle in February 1587

    • The execution became one of Philip II’s key justifications for the Spanish Armada (1588)

  • Historians debate how successfully Elizabeth handled the Mary problem

    • Some argue that 19 years of delay was wise diplomacy; others argue that it allowed three major plots to develop

The Issue of the Succession: Why Did Elizabeth Never Marry?

Revision card on King Philip II of Spain, showing his portrait and bullet-point positives and negatives of him as a potential husband for Elizabeth I
Marriage card: King Philip II of Spain
Study card on Robert Dudley, Earl of Leicester, with portrait and lists of positives and negatives about his suitability as a husband for Elizabeth I
Marriage card: Robert Dudley
Revision card on Archduke Charles of Austria with portrait, listing positives and negatives of him as a suitor for Elizabeth I, focusing on religion and alliances.
Marriage Card: Archduke Charles of Austria
Educational poster of Francis, Duke of Anjou and Alençon, with his portrait and a table listing positive and negative reasons for his marriage to Elizabeth I
Marriage Card: Francis Duke of Anjou and Alençon
  • The succession question dominated the entire reign

    • Without an heir, a disputed or Catholic succession remained a constant danger

    • Parliament repeatedly pressed Elizabeth to marry or name a successor; she refused on both counts

    • Elizabeth insisted that marriage and the succession were matters of royal prerogative

  • Marriage posed serious risks for Elizabeth

    • A foreign husband would risk dragging England into European conflicts

    • An English noble husband would fuel faction and rivalry at court

    • Any husband would expect a share in governing

      • Elizabeth was determined to rule alone

The main suitors

Suitor

Why it came to nothing

Philip II of Spain

  • Proposed marriage shortly after Elizabeth's accession

  • Rejected quickly

  • Too Catholic: the match was unpopular and risked reversing the religious settlement

  • Political risk: marriage to Philip could have made England subordinate to Spanish interests

Robert Dudley, Earl of Leicester

  • Elizabeth's favourite from the start of the reign

  • Marriage was politically impossible

  • The suspicious death of his wife Amy Robsart in 1560 made it unthinkable

Charles, Archduke of Austria

  • Negotiations ran from the 1560s

  • Broke down over religion

    • Charles was a committed Catholic and would not convert

Francis, Duke of Anjou

  • The closest Elizabeth came to marriage

  • Negotiations ran from 1579 to 1581

  • Ultimately rejected, partly due to the age gap and a public hostility in England to a Catholic match

  • Elizabeth turned her unmarried status into a political tool

    • She kept marriage negotiations running with multiple suitors simultaneously

      • This gave her diplomatic leverage with France, Spain and the Habsburg Empire without ever committing

      • With France: negotiations with the Duke of Anjou helped maintain an anti-Spanish balance of power

    • From the 1570s, the cult of the Virgin Queen (Gloriana) grew around her unmarried status

  • The succession was only settled at Elizabeth’s death in 1603, when James VI of Scotland succeeded smoothly, largely thanks to Robert Cecil’s prior preparations

Examiner Tips and Tricks

Be careful of presenting Elizabeth's refusal to marry as simply irrational or personal. She had strong political reasons. Her use of marriage negotiations as a diplomatic tool was a sign of her intelligence and served her well for decades. The question is whether her failure to settle the succession was ultimately a weakness.

Mary Queen of Scots: Arrival in England, 1568 & Imprisonment

Cause–consequence diagram for Mary’s arrival in England in 1568, listing three causes on the left and three political and religious consequences on the right
Mary's arrival in England

Mary's background and claim

  • Mary was a serious threat to Elizabeth before she ever arrived in England

    • She was Queen of Scotland from one week old, born in 1542

    • She was raised as a Catholic at the French court from 1548

    • She married the French Dauphin in 1558, briefly making her Queen of France (1559–1560)

  • Mary's claim to the English throne came through her grandmother Margaret Tudor, daughter of Henry VII

    • In Catholic eyes, she had a stronger claim than Elizabeth, whom they regarded as illegitimate

    • The Pope and many Catholic powers saw her as the legitimate alternative to Elizabeth

Colour-coded family tree titled “The English Succession”, showing Henry VII’s descendants linking Tudors, Scottish monarchs and Mary Queen of Scots to Elizabeth I
The English Succession - Mary and Elizabeth are depicted in blue boxes

Disasters in Scotland

  • Mary's rule in Scotland collapsed in a series of personal and political crises

    • She married Lord Darnley in 1565; the marriage quickly became a disaster

      • Darnley was murdered in February 1567 in suspicious circumstances

    • Mary then married the Earl of Bothwell, widely suspected of Darnley's murder

    • Scottish nobles forced her to abdicate in favour of her baby son, James

    • She fled to England in 1568, expecting Elizabeth's support

Elizabeth's dilemma

  • Mary's arrival in England put Elizabeth in an impossible position

    • To support Mary would mean attacking Protestant allies in Scotland

    • To do nothing would imply that a monarch could be legitimately deposed

    • Elizabeth could neither free her, return her to Scotland nor execute her without serious consequences

      • Her solution was to keep Mary under house arrest indefinitely

      • Mary was held for 19 years, moving between various northern castles (e.g. Sheffield Castle under the Earl of Shrewsbury, and Tutbury Castle under Sir Amyas Paulet)

“Mary’s arrival set Elizabeth a problem which was only to be solved nineteen years later by her execution. There were really two Mary Stuarts to be dealt with. One was the sister sovereign in exile, who merited honourable asylum and perhaps assistance to regain her throne. The other was the Catholic claimant to the English succession, if not to the English throne, the woman who would be under Elizabeth – only much more actively and dangerously – what Elizabeth had been under Mary Tudor, and Mary Tudor under Somerset and Northumberland, the magnet drawing together scattered elements of religious and political discontent.”

S.T. Bindoff, Tudor England (1952)

Bindoff argues that Mary posed a dual problem: as a deposed queen deserving protection, and as a Catholic claimant who was a natural focus for every conspiracy against Elizabeth. He presents the problem as structural rather than personal.

  • The Casket Letters (1568–1569), allegedly written by Mary, were produced as evidence of her involvement in Darnley’s murder

    • The inquiry reached no decisive verdict, but the suspicion was enough for Elizabeth to justify keeping Mary in captivity

Examiner Tips and Tricks

The Bindoff quote captures the core tension perfectly. Mary was simultaneously a figure deserving protection and a permanent threat. Elizabeth's 19-year delay in resolving the problem can be presented either as pragmatic diplomacy or as dangerous indecision. Make sure you can argue both.

Catholic Plots: Ridolfi (1571), Throckmorton (1583) & Babington (1586)

Timeline 1560–1590 showing Elizabethan Catholic threats: Northern Rebellion 1569, papal bull 1570, Ridolfi Plot 1571, Throckmorton Plot 1583, Babington Plot 1586
Timeline of major Catholic plots against Elizabeth
  • All three plots shared the same basic aim: to remove Elizabeth and replace her with Mary Queen of Scots

    • Each involved Catholic conspirators at home working with foreign powers abroad

    • Each was uncovered by Cecil (Lord Burghley's) and, later, Walsingham's intelligence networks

    • The plots escalated in seriousness, each making Mary's position more precarious

The Ridolfi Plot, 1571

Flowchart of the Ridolfi Plot, 1571: Elizabeth I is murdered, Spain invades, Mary marries the Duke of Norfolk, becomes queen and restores Catholicism.
The plan for the Ridolfi Plot, 1571

Who

  • Led by Robert Ridolfi, a Florentine banker living in England

    • He acted as a go-between for Mary, the Duke of Norfolk, Philip II and the Pope

The plan

  • Assassinate Elizabeth

  • Place Mary on the throne, married to the Duke of Norfolk

  • Spanish troops would invade from the Netherlands to support the rising

  • Catholicism would be restored to England

How it was uncovered

  • Burghley used informers and torture to extract confessions

  • The plot was fully exposed

Outcome

  • Norfolk was found guilty of treason and executed in 1572

  • Elizabeth refused to execute Mary despite intense parliamentary pressure

  • Spanish ambassador De Spes was expelled

The Throckmorton Plot, 1583

Flowchart of the Throckmorton Plot, 1583, showing Mary gaining Spanish and French support, invasion, Elizabeth’s overthrow and Catholicism restored under Mary
The plan for the Throckmorton Plot, 1583

Who

  • Led by Francis Throckmorton, an English Catholic

    • He acted as an intermediary between Mary and the Spanish ambassador Mendoza, and the French Guise family

The plan

  • Mary was to secure Spanish support, while the Duke of Guise would lead a French invasion

  • The French Duke of Guise would conduct an invasion of England

  • Elizabeth would be assassinated and Mary placed on the throne

  • Catholicism in England would be restored

How it was uncovered

  • Walsingham's agents had Throckmorton under surveillance

    • He was arrested, tortured and confessed

Outcome

  • Throckmorton was executed

  • Mendoza was expelled, bringing England and Spain close to open war

The Babington Plot, 1586

Flowchart of the Babington Plot, 1586: kill Elizabeth I, free Mary Stuart, spark Catholic uprising with foreign help, make Mary queen and restore Catholicism
The plan for the Babington Plot, 1586

Who

  • Led by Anthony Babington, a young English Catholic gentleman, and a group of conspirators

  • Mary herself was directly involved

The plan

  • Elizabeth was to be assassinated

  • Mary would be freed

  • A Catholic uprising in England would be triggered

  • Foreign support for the uprising (including the French Duke of Guise)

  • Mary would be placed on the throne

  • Catholicism in England would be restored

How it was uncovered

  • Walsingham allowed the plot to run deliberately in order to obtain written proof of Mary's involvement

  • Mary's letter to Babington on 17th July 1586 was the decisive piece of evidence

    • In it, she approved the plan to assassinate Elizabeth and free herself

Outcome

  • Conspirators were arrested and executed in September 1586

  • A special commission found Mary guilty in October 1586

    • Parliament formally demanded her execution

"Everything being prepared, and the forces as well within as without … then you must set the six gentlemen to work and give order that, their design accomplished, I may be in some way got away from there and that all your forces shall be simultaneously in the field to receive me while we await foreign assistance…”

Mary Queen of Scots' letter to Anthony Babington, 17 July 1586, intercepted by Walsingham

  • The Bond of Association (1584) helped prepare the ground for Mary’s execution

    • Drawn up after the assassination of William of Orange, it stated that anyone benefitting from a plot against Elizabeth could be excluded from the succession

    • This principle was reinforced by the Act for the Queen’s Safety (1585), which made Mary legally vulnerable even if she had not personally carried out the assassination

Examiner Tips and Tricks

The Babington Plot letter is commonly set in the Extract section of the paper. When evaluating it, consider that many historians have questioned whether Mary's letter was authentic or whether Walsingham had altered it to ensure her guilt. However, make sure you show both sides of the story. Always show you can evaluate the source critically, not just summarise what it says or take it at face value.

The Execution of Mary Queen of Scots, 1587

Timeline from 1568–1587 showing Mary, Queen of Scots: fleeing Scotland, Ridolfi Plot, Throckmorton Plot, Babington Plot evidence, and her execution.
Execution of Mary timeline
  • Elizabeth delayed for months after Mary was found guilty in October 1586

    • She regarded Mary as a fellow anointed queen

      • Executing her set a dangerous precedent

    • Mary had close ties to the French Guise family, which held diplomatic value

    • England was already heading towards war with Spain

      • The execution would make things worse

    • Elizabeth felt personal sympathy for a cousin who had suffered greatly

  • Elizabeth signed the death warrant in February 1587, but did not authorise its release

    • Her Secretary of State, William Davison, released the warrant to the Privy Council

    • The Council acted and Mary was executed at Fotheringhay Castle on 8 February 1587

    • Elizabeth flew into a rage

      • She publicly blamed the Council and imprisoned Davison

      • Most historians regard this as political theatre; Elizabeth wanted to be able to deny responsibility

      • Davison was eventually released and his fine remitted; the Council was restored to favour

  • James VI protested formally but took no real action

    • He had no intention of sacrificing the prospect of the English succession for his mother

    • He was already regarded as the likely heir to the English throne

“Elizabeth never acted solely out of sentiment, and if she had earlier judged Mary’s death a necessity, she would not have shrunk from its cruelty. When at last she yielded – although even then she left the final responsibility to others – the argument for Mary’s death was overwhelmingly strong… Mary living would be infinitely more dangerous than Mary dead. Justice had long demanded that Mary should die, but it was expediency not justice that sent her to her death in 1587.”

S.T. Bindoff, Tudor England (1950)

Bindoff argues that Elizabeth’s delay was not purely sentimental. He presents the execution as a political necessity driven by self-preservation, not by justice. The phrase "expediency not justice" is the key analytical point: Elizabeth acted when she had no other option, not out of principle.

Examiner Tips and Tricks

The phrase "expediency not justice" is one of the most useful analytical phrases available for this topic. It captures the argument that Elizabeth’s entire handling of Mary was driven by political calculation rather than principle. Use it in essays to show analytical precision.

How Successfully Did Elizabeth Handle the Problem of Mary Queen of Scots?

  • Use the specific evidence below to build and support your own argument

The case that Elizabeth handled the problem successfully

  • Elizabeth kept Mary imprisoned for 19 years without triggering a major war

    • Despite three plots, England remained secure and Mary was never freed

    • Elizabeth used the threat of Mary to maintain diplomatic leverage with France and Spain throughout the 1560s and 1570s

    • Walsingham's intelligence network, built partly in response to Mary, was one of the most effective in Europe

  • The eventual execution was handled with political care

    • Elizabeth obtained written proof of Mary's guilt before acting

    • A special commission was ordered to investigate Mary's guilt

    • Elizabeth maintained plausible deniability by blaming Davison and the Council

    • James VI accepted the situation, and the Protestant succession was secured

The case that Elizabeth handled the problem poorly

  • 19 years of indecision created a permanent focus for conspiracy

    • All three plots (Ridolfi, Throckmorton, Babington) centred on Mary

    • Each plot put Elizabeth's life in danger and sought to destabilise government

    • Earlier action could have prevented years of threat

  • The execution of 1587 contributed to the Spanish Armada, though preparations had already begun earlier in response to English intervention in the Netherlands (from 1585)

    • Philip II cited Mary's execution as a key justification for the invasion of 1588

    • The execution produced the very diplomatic crisis Elizabeth had long tried to avoid

Examiner Tips and Tricks

This question demands a judgement across the whole problem, not just the execution. A strong answer will weigh the diplomatic skill of the long delay against the dangers it created.

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Lottie Bates

Author: Lottie Bates

Expertise: History Content Creator

Lottie has worked in education as a teacher of History and Classical subjects, supporting students across GCSE, IGCSE and A Level. This has given her a strong understanding of how to help students succeed in exams, particularly when structuring written answers and using specific evidence effectively. She believes that studying history helps students make sense of the modern world, and is passionate about making complex topics clear, accessible and relevant to exam success.

Bridgette Barrett

Reviewer: Bridgette Barrett

Expertise: Geography, History, Religious Studies & Environmental Studies Subject Lead

After graduating with a degree in Geography, Bridgette completed a PGCE over 30 years ago. She later gained an MA Learning, Technology and Education from the University of Nottingham focussing on online learning. At a time when the study of geography has never been more important, Bridgette is passionate about creating content which supports students in achieving their potential in geography and builds their confidence.