The Jacobite March That Almost Changed Everything

Although the Jacobite rising of 1745 ended in defeat at Culloden, the campaign came far closer to success than is often remembered. By early December 1745, Charles Edward Stuart’s army had advanced deep into England, reaching Derby on the 6th. The Hanoverian court, alarmed by the speed and momentum of the Jacobite march, had already begun preparing for evacuation from London. The crucial decision to retreat was taken after a tense council of war in an upstairs room of a Derby inn — a moment that effectively determined the fate of the rising.

It is here that historians often pause, because the distance between what happened and what might have happened is unusually narrow. Some argue that had Charles pressed on, the political and military situation was fragile enough that the Hanoverian regime might not have survived the shock. Others go further, suggesting that a Jacobite victory at this point could have reshaped not only British history but the wider trajectory of European and Atlantic affairs.

Timeline of the 1745 Jacobite Rising

The Derby Decision: A Strategic, Geopolitical, and Counterfactual Analysis of the 1745 Jacobite Crisis

1. Introduction: The Pivot Point of the Eighteenth Century

The commentary presented regarding the 1745 Jacobite Rising identifies what is arguably the most profound "what if" scenario in the history of the British Isles and, by extension, the modern geopolitical order. The assertion that a decision made in a provincial pub in Derby on 6 December 1745 determined the fate of the Hanoverian dynasty, the trajectory of the British Empire, the independence of the United States, and the stability of the French monarchy is a thesis of sweeping magnitude. It suggests that the retreat of Charles Edward Stuart’s army was not merely a tactical withdrawal but a collapse of a timeline that would have averted the "Second Hundred Years' War" between Britain and France and fundamentally altered the genesis of modern democracy. This report provides an exhaustive analysis of these claims, synthesizing military history, political intelligence, and macroeconomic data to evaluate the plausibility of the counterfactuals presented. By scrutinizing the specific events at Exeter House, the atmosphere of "Black Friday" in London, and the structural causes of the late 18th-century revolutions, this document aims to determine whether the world truly would be a "very different place" had the Jacobite leadership chosen to advance rather than retreat. The analysis draws upon a wide array of primary accounts, including the memoirs of the spy Dudley Bradstreet and the letters of Horace Walpole, alongside modern historiographical assessments by scholars such as Christopher Duffy, Jeremy Black, and Frank McLynn.

2. The Road to Derby: Operational Context and Momentum

To understand the gravity of the decision at Derby, one must first dissect the operational reality of the Jacobite army and the opposing Hanoverian forces in December 1745. The "Forty-Five" was not a quixotic adventure by a marginalized fringe; it was a serious military threat that exploited a strategic vacuum in British domestic defenses caused by the War of the Austrian Succession. [1]

2.1 The Jacobite Advance: Strategy and Composition

By early December 1745, the Jacobite army had achieved a series of operational successes that defied the expectations of the British military establishment. Having routed Sir John Cope’s government army at the Battle of Prestonpans in September—a victory achieved in mere minutes through the shock tactics of the Highland Charge—the Jacobites controlled Scotland. [1] The subsequent invasion of England was characterized by speed, deception, and discipline. The army that entered Derby on 4 December consisted of approximately 5,000 to 6,000 men. [2] While numerically inferior to the aggregate strength of the British Army, this force possessed a qualitative edge in morale and cohesion. The core combatants were Highland clansmen, whose tactic of the Highland Charge—involving a rapid advance into musket range, a single volley, and an immediate shock impact with broadswords and targes—had proven psychologically devastating to regular infantry unaccustomed to such aggression. Historian Christopher Duffy argues that the Jacobite army was not a primitive feudal gathering but possessed a "highly advanced organization" of forces into "divisions," effectively miniature armies that allowed them to move independently and outmaneuver their enemies on the strategic plane. This operational flexibility allowed Lord George Murray, the Jacobite Lieutenant-General, to deceive the government forces repeatedly. By feinting towards Wales and then London, Murray had successfully confused Field Marshal George Wade at Newcastle and the Duke of Cumberland in the Midlands, slipping between them to reach Derby with the road to the capital arguably open. [1]

2.2 The Hanoverian Dispositions: The Closing Net

The British government, initially complacent, had mobilized significant resources by December to counter the existential threat to the regime.

• The Duke of Cumberland’s Army: King George II’s younger son, William Augustus, the Duke of Cumberland, had been recalled from the Continent with battle-hardened regiments from the War of the Austrian Succession. [2] Known for his logistical rigor, Cumberland was positioning his army to intercept the Jacobites but had been wrong-footed by Murray’s feints.
• General Wade’s Army: Stationed in the north, Wade’s forces were threatening the Jacobite rear. However, Wade was elderly, and his army was hampered by poor weather and difficult terrain, making them a slow-moving threat. [1]
• The Defense of London: A third force was hastily assembling at Finchley Common to defend the capital. This army, depicted satirically by William Hogarth in The March of the Guards to Finchley, consisted of Guards regiments, militia, and new volunteer regiments. While the Guards were elite, the militia elements were untested and of questionable discipline.

2.3 The Crisis of Intelligence

Despite their successful advance, the Jacobite command was operating in an intelligence vacuum. They were 300 miles from their base in Scotland, deep in hostile territory, and suffering from a critical lack of information regarding the promised French invasion and the support of English Jacobites. [2] The decision to invade England had been predicated on assurances by Charles that he had substantial support from English Tories and that a French landing in the south was imminent. [1] By Derby, neither had materialized in force. Manchester had provided the "Manchester Regiment," but other towns like Preston had offered only a handful of recruits. [1] This isolation weighed heavily on the minds of the Scottish commanders.

3. The Crisis at Exeter House: Anatomy of the Decision

The pivot point of the rising—and arguably of the century—occurred on 5 December 1745 at Exeter House in Derby. The decision to retreat was not a moment of cowardice but the result of a "closely argued meeting" driven by counter-intelligence, strategic pragmatism, and a crisis of confidence. [2, 6]

United Kingdom, England, Derby, Exeter House. This strategic breakdown illustrates the pivotal moment in 1745 when the Jacobite army weighed the tempting path to London against the looming threat of encirclement. It captures the high-stakes military logic that ultimately altered the course of British history.

3.1 The Council of War

Exeter House, a 17th-century brick mansion, served as the headquarters for the Prince. It was here that the Council of War convened. The primary tension lay between the dynastic ambition of the Prince and the military realism of his generals.

• Prince Charles Edward Stuart: The Prince argued for an immediate advance on London. He believed in the "audacity of action," convinced that the Hanoverian regime was fragile and that his presence in the capital would trigger a mass uprising and force the French to land. [7] He viewed the retreat as a betrayal of the cause.
• Lord George Murray: Murray acted as the voice of the clan chiefs. He argued that without a French landing or a general rising of English Jacobites, advancing was suicidal. He pointed out that they would be outnumbered, potentially trapped in a hostile capital, and cut off from any line of retreat to Scotland. [7]

3.2 The Role of Dudley Bradstreet: The Spy Who Changed History

A critical, often overlooked factor in the Council’s decision was the role of deception. The Jacobite commanders were susceptible to misinformation due to their lack of reliable intelligence. Into this gap stepped Dudley Bradstreet, a government spy and adventurer. According to his own memoirs and historical analysis, Bradstreet infiltrated the Jacobite camp at Derby posing as a supporter. [8, 9] He gained access to the commanders and fed them a piece of devastatingly false intelligence: that a third government army of 9,000 men—comprising regular troops, not just militia—was waiting at Northampton to block the advance on London. [6] This fabrication confirmed the worst fears of Lord George Murray. The Council believed they were about to be encircled by three superior armies: Cumberland chasing them from the rear, Wade closing from the north, and this phantom force at Northampton blocking the road to London. [10] The deception was pivotal. As historian Christopher Duffy notes, while the "general hostility" in London was a real obstacle, the specific intelligence provided by Bradstreet (however fraudulent) catalyzed the decision to turn back. [11]

3.3 The Decision to Retreat

Faced with the prospect of encirclement and destruction, the Council voted overwhelmingly to retreat. The decision was not unanimous in spirit—Charles was furious and declared that he would no longer consult the Council—but it was decisive. [7] On 6 December 1745, a day that would become known to the Jacobites as "Black Friday," the army began its long march north back toward Scotland, unaware that the path to London had been less defended than they believed. [6]

Table 1: The Opposing Forces in December 1745

4. "Black Friday" in London: Panic and the Fragility of the Regime

The user's comment asserts that "the Hanoverian court was packing its belongings onto ships in the Thames" and that George II "would probably have fled." This section scrutinizes the historical evidence for these claims to determine the true state of the capital.

4.1 The Atmosphere of Terror

Primary sources confirm that 6 December 1745 was a day of genuine panic in London, contemporaneously labeled "Black Friday". [6, 12] The arrival of the Jacobites at Derby shattered the complacency of the metropolitan elite, who had previously dismissed the rising as a distant Highland skirmish.

• Financial Collapse: The most immediate indicator of the crisis was the run on the Bank of England. The Jacobite advance threatened the financial foundations of the Whig state. To stall for time and prevent the bank from being drained of specie, clerks reportedly adopted the tactic of paying out checks in sixpences, deliberately slowing the transaction process to a crawl. [12]
• Commercial Paralysis: Shops were shut, business was suspended, and the "trading part of the city" was overwhelmed with dejection. The fear was driven not just by regime change but by the propaganda-fueled image of the Highlanders as savage looters. [12]

4.2 The Myth and Reality of "Packing Ships"

The specific claim that George II was packing his yachts is a persistent element of the 1745 narrative.

• The Rumor: Contemporary rumors and later Jacobite histories claimed that the King’s yachts were moored at the Tower stairs, laden with royal treasure and personal effects, ready to sail for Hanover at a moment's notice. [13] This imagery serves to highlight the cowardice or alien nature of the Hanoverian dynasty in Jacobite historiography.
• Historical Assessment: There is no definitive primary evidence that the King physically packed his bags. George II was a man of military experience, having led troops personally at the Battle of Dettingen in 1743. He had declared his intention to lead the Guards at Finchley himself. However, the contingency of flight was almost certainly discussed within the court. The Hanoverian regime was not just a British monarchy but an Electorate of the Holy Roman Empire; retreat to Hanover to organize a reconquest was a viable strategic option, not necessarily an act of pure cowardice.
• Walpole’s Letters: Horace Walpole, a prime observer of the era, documents the "expectation of a French invasion" and the general anxiety, noting that the "rats of the Ministry" were considering deserting the sinking ship. [12, 16] The Duke of Newcastle, a key minister, was reportedly in a state of indecision, contemplating switching sides. [12]

4.3 The Defenses at Finchley

The physical defense of London relied on the camp at Finchley Common.

• Composition: The force included regular Foot Guards, but also hastily raised regiments and militia. The loyalty and steadiness of the militia were suspect.
• Hogarth’s Satire: William Hogarth’s painting The March of the Guards to Finchley provides a contemporary commentary on this force. It depicts the soldiers as dissolute, disorganized, and distracted by women and drink. While satirical, it reflects a genuine public perception that the defenders of London were not the disciplined machine of the British Army but a chaotic assemblage.
• Tactical Vulnerability: If the disciplined Jacobite column had struck this force, the psychological impact of the Highland Charge on raw militia could have been catastrophic. A rout at Finchley would have left London open.

The March of the Guards to Finchley painting by William Hogarth

5. Military Counterfactual: The Battle for London

If the Council at Derby had ignored Bradstreet’s lies and Murray’s caution, what would have been the likely military outcome?

5.1 The March to the Capital

Derby is approximately 125 miles from London. A forced march by light infantry—which the Highlanders excelled at—could have covered this distance in 6 to 7 days.

• Outrunning Cumberland: The Duke of Cumberland was at Lichfield and Coventry. The Jacobites had gained a march on him. While he would have pursued, the Jacobites moved faster than the equipment-heavy regular army. It is plausible they could have reached Finchley before Cumberland could catch their rear. [2]
• The "Phantom" Army: The army at Northampton did not exist. The road was effectively clear until the outskirts of London.

5.2 The Engagement at Finchley

The hypothetical "Battle of Finchley" would have pitted the Jacobites against the mixed force at Finchley Common.

• Tactical Advantage: Historian Jeremy Black argues that while taking London was a difficult task, the Jacobites had a realistic chance of success. [17] The "Highland Charge" relied on speed and shock. Against the steady Dutch or French infantry, it was risky; against the terrified London militia and the disorganized Guards depicted by Hogarth, it likely would have caused a panic-induced rout similar to Prestonpans.
• The French Intervention: The Treaty of Fontainebleau (1745) committed France to assist the Jacobites. The primary reason for the lack of invasion was the hesitation of the French court, waiting for a clear sign of Jacobite success in England. A victory at Finchley or the capture of London would likely have been the trigger for the French invasion fleet at Dunkirk to sail, changing the conflict from a civil war to an international one.

5.3 The Fall of the Regime

• Urban Collapse: London was a city of half a million people. It was not a fortress. If the field army at Finchley collapsed, the authorities would likely have surrendered the city to prevent a sack. The "mob" in London was volatile; while anti-Catholic, they were also anti-Hanoverian in many quarters. A collapse of authority could have led to riots that paralyzed the government, forcing George II to flee to the Continent. [1, 20]

Conclusion on Military Feasibility: The advance from Derby was a high-risk gamble, but not a suicidal one. The "metaphorical edge" and momentum were with the Jacobites. A victory at Finchley was probable, and a subsequent collapse of the Hanoverian government was a realistic scenario.

6. Political Counterfactual: The Stuart Restoration

Assuming Charles takes London and his father is proclaimed James III, the political landscape shifts dramatically. This restoration would not have been a simple return to the status quo of 1688.

6.1 The New Regime: James III

James Francis Edward Stuart (James III) was a melancholy and devout figure living in Rome. His restoration would have faced immediate structural challenges.

• Religious Friction: The Stuarts were Catholic. The British political nation was staunchly Protestant. James III would have had to offer credible guarantees of the Church of England’s supremacy. His "Declarations" promised toleration, but the trust deficit was immense.
• Constitutional Tension: Prince Charles had issued proclamations promising to rule through a free Parliament and to address grievances regarding the National Debt and the Union. However, the tension between the Stuart belief in Divine Right and the established supremacy of Parliament (since the Glorious Revolution) would have remained a central fault line.
• The Whig Oligarchy: The Whig elite, who controlled the City of London and the financial system, would not have vanished. They might have retreated to the provinces or to the Netherlands to plot a counter-revolution. A "Third British Civil War" was a distinct possibility.

6.2 The Union and the Empire

The Scottish Jacobites were driven largely by opposition to the Union of 1707. A restoration might have resulted in the dissolution of the Union, returning Scotland to the status of a separate kingdom sharing a monarch (a regal union). [22] This would have weakened the centralized fiscal-military state that Britain had become, reducing its capacity to project power globally.

7. Geopolitical Counterfactual: The "70 Years of Conflict"

The comment suggests that a Stuart victory would have avoided "a further 70 years of conflict" between England and France. This period (1745–1815) covers the Seven Years' War, the American Revolution, the French Revolution, and the Napoleonic Wars.

7.1 The End of the Anglo-French Rivalry?

• Dynastic Realignment: The Stuarts were clients of France. A Stuart Britain would likely have exited the War of the Austrian Succession immediately. The "Auld Alliance" would have been effectively extended to England. This would have neutralized the immediate threat of war.
• The "King's Secret": Louis XV supported the Jacobites to destabilize Britain. A friendly Stuart monarch would have turned Britain from a rival into a satellite or a junior partner.
• Structural Rivalry vs. Dynastic Peace: However, the claim that all conflict would cease ignores the economic drivers of the wars. Britain and France were competing for global commercial dominance (sugar, slaves, India, North America). [24] Even a Stuart King would have been pressured by the mercantile interest in London to protect British trade.
  • Counter-Argument: If the King owed his throne to French bayonets, he might have ceded colonial advantages (e.g., return of Louisbourg, fishing rights in Newfoundland) as payment. This would have subordinated British interests, preventing war but establishing French hegemony. [25, 26]

7.2 The Seven Years' War (1756–1763)

In our timeline, this war destroyed the French colonial empire.

• Scenario A (Stuart Neutrality): If Stuart Britain remains neutral, France is free to focus its resources on the Continent against Prussia. Prussia is likely crushed by the coalition of France, Austria, and Russia. France retains its dominance in Europe.
• Scenario B (French Victory): Without the British Navy harassing French shipping and seizing colonies, France retains Canada (New France) and expands its influence in India.

Verdict: The "70 years of conflict" might have been avoided in the form of wars, but replaced by a period of French diplomatic and colonial hegemony.

8. The American Counterfactual: No Revolution?

The comment posits that without the French wars, there would be no taxes on the colonies, and thus no American Revolution. This is perhaps the most robust part of the counterfactual argument, supported by economic causality.

8.1 The Fiscal Link: Debt and Taxation

The causality in our timeline is clear:

1. Seven Years' War: Britain fights a global war to expel France from North America.
2. Debt Crisis: The war doubles the British national debt.
3. Taxation: To pay this debt and garrison the expanded empire, Parliament ends "salutary neglect" and imposes the Stamp Act (1765) and Townshend Acts. [25]
4. Rebellion: These taxes trigger the colonial resistance that leads to 1776.

Counterfactual: If a Stuart Britain avoids the Seven Years' War (or stays neutral), the crushing debt is not incurred. There is no desperate need to tax the colonies. The "benign neglect" continues, and the friction points (Stamp Act, Tea Party) do not occur. [25]

8.2 The "French Threat" as a Glue

• Strategic Dependency: In 1745, the American colonies were surrounded by New France (Canada, Louisiana) and Spanish Florida. They relied on the British Army and Navy for protection against this existential threat. [25, 26]
• Removal of the Threat: In our timeline, the expulsion of France from Canada in 1763 removed the colonists' need for British protection. As the saying went, "With the French gone, the Americans can now be independent."
• Counterfactual: If France retains Canada (because the war is avoided or Britain is a French ally), the American colonists remain terrified of the French and their Native American allies. They would likely cling to the British connection for survival. A rebellion against the Crown would be suicidal with a hostile New France on their doorstep. [26]

8.3 Jacobitism in America

Interestingly, the American colonies contained a significant population of Scottish emigrants, particularly in North Carolina, who were sympathetic to the Jacobite cause. [27, 28] While the Puritan North would have been hostile to a Catholic King, the Southern colonies might have been more receptive. However, the primary driver for loyalty would remain the strategic need for protection against France.

Table 2: Counterfactual Trajectories for North America

9. The French Counterfactual: No 1789?

The comment concludes that "the French revolution might not have happened." This assertion rests on the financial origins of the French Revolution.

9.1 The Fiscal Crisis of the Ancien Régime

The French Revolution was triggered not just by Enlightenment ideas but by a catastrophic financial collapse.

• The Cost of Revenge: France ruined its finances fighting the Seven Years' War and then financing the American Revolution (as revenge for the loss of Canada). By 1789, the interest payments on the debt consumed half the royal budget.
• The Counterfactual:
  1. If Britain and France are allies/neutrals, France does not spend billions fighting the Seven Years' War.
  2. If there is no American Revolution, France does not spend billions supporting Washington and Lafayette.
  3. Without this massive debt accumulation, the French monarchy does not face the immediate bankruptcy that forced Louis XVI to call the Estates-General in 1789. [30]

9.2 Ideological Contagion

The American Revolution also exported republican ideology to France. French officers like Lafayette returned with ideas of liberty. Without the successful example of the American republic, the ideological pressure on the absolute monarchy would have been significantly weaker. The Ancien Régime might have evolved slowly or collapsed later, but the specific, violent explosion of 1789 would likely have been avoided.

10. Historian Perspectives: The Debate

The plausibility of these scenarios is a subject of debate among historians.

• Frank McLynn: Argues that the Jacobites came agonizingly close and that the French failure to invade was the critical error. He supports the view that a restoration was feasible. [11, 20]
• Jeremy Black: Takes a more cautious view, acknowledging the military feasibility of a Jacobite victory but emphasizing the difficulties of holding a divided nation. However, he agrees that the geopolitical consequences would have been vast, potentially leaving France as the global hegemon. [32, 33]
• Christopher Duffy: Highlights the military competence of the Jacobite army and the failure of the Hanoverian government to understand the threat. He views the retreat from Derby as a failure of nerve rather than military necessity.

11. Conclusion

The commentary provided in the user query is remarkably insightful and, based on the weight of historical evidence and counterfactual analysis, fundamentally sound in its logic. The irony is palpable: the disaster at Culloden on 16 April 1746 has obscured just how close the Jacobites came to victory five months earlier. The retreat from Derby was not inevitable; it was a choice made in a moment of uncertainty, driven by false intelligence (Bradstreet) and a crisis of confidence. Had Charles advanced:

1. London likely would have fallen following a victory over the militia at Finchley.
2. George II might have fled, leading to a Stuart restoration.
3. The "Second Hundred Years' War" would have been averted or fundamentally altered, preventing the Seven Years' War in its historical form.
4. The chain of causality for the American and French Revolutions would have been broken. Without the war debt and the removal of the French threat, the American colonies would likely have remained British. Without the debt from these wars, the French monarchy would not have faced the fiscal crisis of 1789.

The world would indeed be unrecognizable. North America might today be a patchwork of British and French territories. France might have remained the dominant European superpower well into the 19th century, delaying the rise of the British Empire as a global hegemon. The concepts of liberal democracy and republicanism, birthed in the crucibles of 1776 and 1789, might have been delayed by generations or taken entirely different forms. The upstairs room of a pub in Derby thus stands as one of history’s most significant turning points, where the modern world was saved—or lost—by a single vote.

Sources

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