OCR Specification focus:
‘The development of the wars and warfare 1521–1559, extent of and reasons for Charles’s successes and failures, his foreign legacy on his abdication in 1555 and up to the Treaty’
The Habsburg–Valois wars dominated much of Charles V’s reign, with conflicts ranging from Italy to the Low Countries. These wars reveal both the strengths and weaknesses of Charles’s empire and shaped his foreign legacy after abdication.
The Habsburg–Valois Wars: An Overview
Between 1521 and 1559, Charles V was engaged in a prolonged series of wars against Francis I of France and later Henry II of France, known collectively as the Habsburg–Valois wars. These wars revolved around control of Italy, influence over the papacy, and dominance in Western Europe. The conflicts were fought in cycles, often interrupted by truces and treaties that failed to achieve lasting peace.
Context of the Conflict
Dynastic Rivalry: The Valois kings of France feared encirclement by Habsburg territories in Spain, the Holy Roman Empire, and the Low Countries.
Strategic Importance of Italy: Control of Milan and Naples provided influence over papal politics and Italian trade routes.
Wider European Balance: France sought alliances with the Ottomans, papacy, and German princes to weaken Habsburg dominance.
Early Phase: 1521–1529
The wars began in 1521 when France invaded Navarre and northern Italy. Charles’s forces, supported by English and papal allies, initially gained the upper hand.
Battle of Pavia (1525): A decisive victory where Francis I was captured.
Battle of Pavia: A major battle in 1525 in which Charles’s forces defeated the French and captured King Francis I, marking the height of Charles’s military success.

A historical map of north-eastern Italy marking key battlefields of the Italian Wars, including Pavia (1525). It orients learners to the Lombard theatre in which the French and Imperial armies manoeuvred. Source
After Pavia, Charles demanded harsh terms in the Treaty of Madrid (1526), including Francis’s renunciation of claims to Italy and Burgundy. However, Francis repudiated the treaty once released.
The League of Cognac (1526), formed by France, the Pope, Venice, Florence, and England, challenged Charles’s dominance.
The war culminated in the Sack of Rome (1527) by Charles’s troops, severely undermining papal authority.
Treaty of Cambrai (1529)
This treaty temporarily ended hostilities. France abandoned claims in Italy but retained Burgundy. Charles appeared dominant in Italy, crowned by the Pope in Bologna (1530).
Middle Phase: 1530–1544
Renewed conflict followed as Francis sought to overturn earlier defeats.
1536–1538 Wars: Fighting focused on Savoy and Milan. The conflict ended with the Truce of Nice (1538), brokered by the Pope.
Franco–Ottoman Alliance: Francis allied with Suleiman the Magnificent, allowing French troops to coordinate with Ottoman naval power, particularly against Habsburg holdings in the Mediterranean.
1542–1544 War: Henry VIII of England temporarily allied with Charles. Despite victories, Charles faced financial exhaustion. The Treaty of Crépy (1544) ended this phase, with mutual renunciation of dynastic claims.
Later Phase: 1547–1559
Conflict reignited under Henry II of France, Francis’s successor.
Schmalkaldic War (1546–1547) diverted Charles’s attention to German religious issues but weakened his ability to confront France effectively.
France capitalised by seizing Metz, Toul, and Verdun in 1552, with Ottoman naval support. Charles’s siege of Metz failed disastrously, signalling decline in his fortunes.
Ongoing warfare strained Habsburg finances, forcing reliance on heavy taxation and loans from bankers like the Fuggers.
By the 1550s, Charles faced simultaneous pressure from France, the Ottomans, and Protestant princes within the Empire.
Reasons for Successes and Failures
Successes
Early Military Superiority: Well-trained armies and strong commanders (e.g., Charles de Bourbon, the Duke of Alba).
Strategic Alliances: Temporary support from England and papacy bolstered Charles’s campaigns.
Battlefield Victories: Pavia and the Sack of Rome secured temporary dominance.
Failures
Overextension: Charles’s commitments across Spain, Germany, Italy, and the Mediterranean overstretched resources.
Financial Weakness: Reliance on loans created long-term instability.
Allied Opposition: Persistent French diplomacy drew in the papacy, German princes, and Ottomans.
Limited Naval Strength: French–Ottoman cooperation in the Mediterranean undermined Habsburg naval power.
Foreign Legacy on Abdication
When Charles abdicated in 1555, his foreign legacy was mixed:
He had secured Habsburg control in Italy, ensuring Spanish dominance in Naples and Milan.

A Touring Club Italiano/Treccani map of Italy in 1559 immediately after the Peace of Cateau-Cambrésis. It visually consolidates Habsburg-Spanish control of Milan and Naples that crystallised at the close of the Habsburg-Valois wars. Some labels are in Italian and provide wider context but remain within the OCR scope. Source
Yet, France retained significant influence, and Charles failed to decisively break French resistance.
His inability to defeat the Ottomans left the Mediterranean contested.
His abdication divided Habsburg lands: Philip II inherited Spain, the Low Countries, and Italy, while Ferdinand received the imperial crown.
Foreign Legacy: The long-term impact of a ruler’s foreign policy decisions on international relations, territorial control, and dynastic stability after their reign.
The wars from 1521 to 1559 reveal the vast scale of Charles’s ambitions but also the fundamental limitations of his empire, leaving an enduring legacy of conflict and division in Europe.
FAQ
Diplomacy was as crucial as military campaigns. Truces such as the Truce of Nice (1538) or the Treaty of Crépy (1544) reflected exhaustion and shifting alliances.
Charles often sought papal or English backing to offset French strength, while Francis I exploited opportunities to form alliances with the Ottomans or Protestant German princes.
These manoeuvres highlight that the wars were not just fought on battlefields but also in Europe’s diplomatic courts.
The Sack of Rome was carried out largely by unpaid Imperial troops, but it gave Charles immense leverage over the papacy.
It undermined the Pope’s independence, strengthening Habsburg influence in Italy.
However, it also tarnished Charles’s image as a Catholic monarch, since Christian troops had brutalised the Holy City.
This dual impact complicated his authority as both secular ruler and defender of Catholicism.
Geography heavily influenced the wars:
The Alps created logistical difficulties for moving troops into northern Italy.
The Low Countries’ proximity to France meant constant vulnerability to invasion.
Spain’s distance limited rapid reinforcement for campaigns outside the Iberian Peninsula.
This geographic spread exacerbated Charles’s problem of overextension, forcing him to fight on multiple fronts simultaneously.
The alliance, formalised in 1536, placed Charles under pressure from two powerful adversaries simultaneously.
French troops fought in Italy and the Low Countries.
Ottoman naval forces, led by Barbarossa, harassed Habsburg positions in the Mediterranean.
This coordination stretched Charles’s defences and finances, undermining his ability to achieve decisive victories against France.
Charles relied heavily on taxation from Spain and the Low Countries, alongside loans from wealthy financiers such as the Fuggers.
Constant campaigning drained these resources. By the 1550s, he was forced to prioritise fronts, leaving some territories exposed.
Financial exhaustion limited sustained offensives and made truces more attractive, preventing a final, crushing defeat of France.
Practice Questions
Question 1 (2 marks):
Which treaty temporarily ended hostilities between Charles V and Francis I in 1529?
Mark Scheme:
1 mark for naming the Treaty of Cambrai (also known as the Ladies’ Peace).
1 additional mark if the student notes it was between Francis I and Charles V (or their representatives, Louise of Savoy and Margaret of Austria).
Question 2 (6 marks):
Explain two reasons why Charles V’s attempts to defeat France in the Habsburg–Valois wars were ultimately unsuccessful.
Mark Scheme:
Up to 3 marks per explained reason.
Credit should be given for identification of a reason (1 mark) and explanation showing understanding of how/why it caused failure (up to 2 marks).
Possible valid reasons include:
Overextension of Charles’s empire (e.g., conflicts in Germany, Spain, and against the Ottomans overstretched his military and resources).
Financial weaknesses (e.g., reliance on loans, exhaustion of funds preventing sustained campaigns).
Effective alliances of France (e.g., alliance with the Ottomans, papacy, or German princes undermining Charles’s dominance).
Naval inferiority (e.g., French–Ottoman naval cooperation limited Habsburg effectiveness in the Mediterranean).
Maximum 6 marks.
Answers that only list reasons without explanation should be limited to 2 marks overall.