A Dangerous Relative
Mary, Queen of Scots, was Elizabeth’s cousin and, in the eyes of many, a claimant to the English throne. Her Catholic faith and connections to France made her especially alarming to Elizabeth’s government.
Elizabeth first acted against French influence in Scotland, helping Protestant rebels secure the 1560 Treaty of Edinburgh. When Mary returned to Scotland, however, the danger remained. Her disastrous marriage to Henry Stuart, Lord Darnley, followed by his murder and her marriage to Bothwell, weakened her position.
Exile in England
Mary was forced to abdicate in favour of her infant son, James VI. After escaping captivity in Scotland and losing at Langside, she fled to England expecting Elizabeth’s help. Instead, Elizabeth detained her for nineteen years.
The decision was brutally practical. Restoring Mary could empower Catholic enemies; sending her abroad could place her at the head of an international invasion. Keeping her imprisoned created a permanent problem, but one Elizabeth could monitor.
From Symbol to Condemned Queen
Mary became the centre of Catholic plots, including the Northern Rising and the Ridolfi and Babington conspiracies. After Pope Pius V excommunicated Elizabeth, rebellion against the English queen could be presented as religious duty.
Evidence from the Babington Plot persuaded Elizabeth to authorise Mary’s execution in 1587. She later blamed her secretary for carrying out the warrant, leaving historians to question how deeply she truly regretted the decision.
Mary’s death removed the most dangerous rival to Elizabeth’s throne—but it also showed how religious conflict could turn royal kinship into mortal danger.