The Popish Plot was a fictitious conspiracy invented by Titus Oates that between 1678 and 1681 gripped the kingdoms of England and Scotland in anti-Catholic hysteria. Oates alleged that there was an extensive Catholic conspiracy to assassinate Charles II, accusations that led to the executions of at least 22 men and precipitated the Exclusion Bill Crisis. During this tumultuous period, Oates weaved an intricate web of accusations, fueling public fears and paranoia. However, as time went on, the lack of substantial evidence and inconsistencies in Oates's testimony began to unravel the plot. Eventually, Oates himself was arrested and convicted for perjury, exposing the fabricated nature of the conspiracy.
Background
Development of English anti-Catholicism
The fictitious Popish Plot must be understood against the background of the English Reformation and the subsequent development of a strong anti-Catholic sentiment among the mostly Protestant population of England.
The English Reformation began in 1533, when King Henry VIII (1509–1547) sought an annulment of his marriage to Catherine of Aragon to marry Anne Boleyn. As the Pope would not grant this, Henry broke away from Rome and took control of the Church in England. Later, he had the monasteries dissolved, causing opposition in the still largely Catholic nation. Under Henry's son Edward VI (1547–1553), the Church of England was transformed into a strictly Protestant body, with many remnants of Catholicism suppressed. Edward was succeeded by his half-sister Mary I of England (1553–1558), daughter of Henry VIII and Catherine. She was a Catholic and returned the Church in England to union with the Holy See. Mary tainted her policy with two unpopular actions: she married her cousin, King Philip II of Spain, where the Inquisition continued, and had 300 Protestants burned at the stake, causing many Englishmen to associate Catholicism with the involvement of foreign powers and religious persecution.
Mary was succeeded by her Protestant half-sister, Elizabeth I (1558–1603), who again broke away from Rome and suppressed Catholicism. Elizabeth and later Protestant monarchs caused to be hanged and mutilated hundreds of Catholic priests and laymen. This, and her dubious legitimacy – she was the daughter of Henry VIII and Anne Boleyn – led to Catholic powers not recognising her as queen and favouring her next relative, the Catholic Mary, Queen of Scots. Elizabeth's reign saw Catholic rebellions like the Rising of the North (1569) as well as plots like the Ridolfi Plot (1571) or the Babington Plot (1586), both intending to kill Elizabeth and replace her with Mary with the help of a Spanish invasion. Three popes' interventions, in a papal bull with its subsequent suspension and reimposition, gave grounds to suspect English Catholics' loyalty. Following the Babington Plot, Mary was beheaded in 1587. This – and Elizabeth's support of the Dutch Revolt in the Spanish Netherlands – triggered Philip II of Spain's attempted invasion with the Spanish Armada (1588). This reinforced the impression that Catholicism was a foreign element, while the Armada's failure, largely due to unfavourable weather, convinced many Englishmen that God was supportive of Protestantism.
Anti-Catholic sentiment reached new heights in 1605 after the Gunpowder Plot was discovered. Catholic plotters attempted to topple the Protestant regime of King James I by blowing up both King and parliament during the state opening of parliament. However, Guy Fawkes, who was in charge of the explosives, was discovered the night before and the attempt thwarted. The magnitude of the plot – had it succeeded most leading government figures would have been killed in one stroke – convinced many Englishmen that Catholics were devious conspirators who would stop at nothing to have their way, thus making allegations about Catholic plots more believable.