OCR Specification focus:
‘causes of growing unpopularity by 1258 including war with France (1242); the Lusignans; rebellion in Gascony; the problem of Crusading and the Sicilian affair’
King Henry III’s mid-reign saw mounting discontent fuelled by costly French wars, reliance on foreign favourites, regional unrest in Gascony, and the disastrous Sicilian affair.
Henry III’s Growing Unpopularity
Henry III’s reign from 1232 to 1258 transitioned from initial stability to significant political crisis. By the late 1250s, many English barons had grown disillusioned with his style of rule. Several factors combined to undermine his authority and credibility, leading to a mounting sense of betrayal among his subjects.
Reliance on Foreign Favourites: The Lusignans
One of the most significant grievances was Henry’s close relationship with the Lusignans, his half-brothers from his mother Isabella of Angoulême’s second marriage.
Lusignans: A powerful noble family from Poitou in western France, many of whom entered English politics after Isabella’s marriage to Hugh X of Lusignan.
The Lusignans were widely seen as self-serving outsiders who benefitted disproportionately from Henry’s patronage. They were granted land, titles, and offices in England, displacing native nobles from traditional positions of influence. Their heavy-handed behaviour and involvement in disputes created resentment:
They dominated court politics, alienating long-established English barons.
They extracted revenues and resources for their own enrichment.
Their presence symbolised Henry’s perceived neglect of English traditions and interests.
This reliance on foreigners fostered the perception of a king out of touch with his realm, eroding loyalty among the nobility.
War with France and its Consequences
Henry’s ambition to restore lost Angevin territories led him into costly military ventures, most notably the campaign in 1242. This war, aimed at regaining Poitou, was disastrous. At the Battle of Taillebourg, Henry suffered a humiliating defeat against Louis IX of France.
The consequences were severe:
Heavy financial burdens were imposed on England to fund the campaign.
The defeat reinforced the perception of Henry as militarily incompetent.
His reliance on papal financial backing tied him to obligations that strained his independence.
The failed war significantly tarnished his image, particularly among the barons who had been coerced into supplying money and troops.
Rebellion in Gascony
Gascony, the last remaining stronghold of English power on the continent, proved a constant source of instability.

Map of England’s continental possessions c.1259, highlighting Gascony/Aquitaine and the contraction of Plantagenet territory. This situates the persistent disorder in Gascony within the broader geopolitical map confronting Henry III. The map also marks later adjustments in 1271 and 1279, which are extra detail beyond the syllabus timeframe. Source
The region was plagued by rebellions throughout the 1240s and 1250s, sparked by tensions between Gascon nobles and English royal officials.
Henry appointed his son, Lord Edward (later Edward I), to restore order in 1254. This initiative eventually helped stabilise the duchy, but prior to Edward’s intervention, Henry’s governance was marked by unrest, costs, and complaints of mismanagement.
The rebellions in Gascony highlighted Henry’s inability to balance continental responsibilities with domestic stability. Many English nobles resented the diversion of resources to defend a distant duchy of questionable strategic value.
The Problem of Crusading
Henry III was deeply pious and consistently sought involvement in crusading enterprises. He styled himself as a devout Christian monarch, eager to defend Christendom. However, these ambitions carried enormous financial implications.
Crusading: Religious military expeditions sanctioned by the Pope, intended to recover or defend territories considered sacred to Christianity.
Henry’s repeated talk of leading a crusade, without ever following through, frustrated both the Pope and his barons. Instead of direct action, he committed money and promises, creating an impression of ineffectual leadership. Moreover, crusading taxation placed additional burdens on his already strained finances.
The Sicilian Affair
The most damaging of Henry’s international commitments was the Sicilian affair. In 1254, Pope Innocent IV offered Henry the throne of Sicily for his second son, Edmund.

Kingdom of Sicily c.1250, comprising Sicily and much of southern Italy. This delineates the target realm of the papal grant to Edmund and the distance and scale of the projected intervention. The map focuses on political geography; no campaign routes are shown. Source
Attracted by the prospect of dynastic expansion, Henry accepted.

Gold seal-impression (bulla) of Edmund as ‘King of Sicily,’ showing a seated king with sceptre and orb; the reverse bears the royal arms of England. Issued during Henry III’s pursuit of the Sicilian crown for Edmund, it exemplifies the costly ceremonial and diplomatic commitments behind the scheme. Includes numismatic/sealing details beyond the syllabus, used here to illuminate the policy in practice. Source
However, this proved disastrous:
The cost of financing the papal campaign was astronomical.
Henry raised taxes and demanded subsidies, further alienating his subjects.
Parliament and the barons resented being forced to underwrite a war that offered little direct benefit to England.
By 1258, debts from the Sicilian commitment had spiralled, leaving the crown financially crippled.
The Sicilian affair became emblematic of Henry’s reckless ambition and disregard for baronial counsel. It contributed directly to the baronial reform movement that culminated in the Provisions of Oxford.
Layers of Discontent by 1258
By the late 1250s, several interconnected grievances undermined Henry III’s kingship:
Foreign favourites (Lusignans): Viewed as parasites exploiting England.
French campaigns (1242): Costly failure, damaging prestige.
Gascon unrest: Prolonged instability demanding resources.
Crusading commitments: Expensive promises with little tangible reward.
The Sicilian affair: The most catastrophic, leaving England heavily indebted and Henry politically isolated.
The combination of these issues fostered a climate of mistrust, resentment, and opposition. By 1258, Henry’s authority faced its greatest challenge, as barons moved decisively to reform royal governance.
FAQ
The Lusignans were seen as outsiders who disrupted traditional balances of power. They were given lands, titles, and lucrative offices, displacing established barons.
Their aggressive behaviour, involvement in disputes, and reputation for greed reinforced resentment. For many nobles, their prominence symbolised Henry III’s favouritism and disregard for English customs.
After Henry’s defeat at Taillebourg, Louis IX emerged as the dominant monarch in western Europe.
Instead of regaining Poitou, Henry had to rely on diplomatic overtures. This strengthened Louis’s position as a mediator in future disputes, and Henry was forced into humiliating compromises, such as recognising French authority over lands he once claimed.
The papacy engineered the entire scheme. Pope Innocent IV offered Sicily to Henry’s son, Edmund, on condition Henry finance the expulsion of the Hohenstaufen rulers.
When Henry failed to deliver sufficient funds, successive popes pressed him harder, threatening spiritual penalties. This made Henry appear subservient to papal interests, fuelling baronial anger at his lack of independence.
Gascony had a fragmented society, with powerful local lords, rival towns, and long-standing feuds.
English-appointed officials were often resented as foreigners, leading to resistance.
Its position on the edge of French influence also meant Henry had to defend it constantly, draining money and manpower. The result was frequent rebellion and unrest.
It showed reckless ambition by pursuing a distant crown irrelevant to English interests.
His inability to finance the project revealed poor planning.
Heavy taxation without reward alienated both nobles and common subjects.
The affair reinforced a narrative of incompetence, undermining trust in his leadership and paving the way for demands for reform.
Practice Questions
Question 1 (2 marks)
Name two factors that contributed to the unpopularity of Henry III’s rule by 1258.
Mark scheme:
1 mark for each correct factor identified.
Acceptable answers include:
Reliance on the Lusignans / foreign favourites.
The failure of the French campaign in 1242.
Rebellion in Gascony.
The costs and failures of crusading commitments.
The Sicilian affair and its debts.
Question 2 (5 marks)
Explain how the Sicilian affair contributed to the political difficulties faced by Henry III in the 1250s.
Mark scheme:
Level 1 (1–2 marks): General description with limited reference to consequences, e.g. “It cost a lot of money.”
Level 2 (3–4 marks): Some explanation of its significance, e.g. “Henry accepted the papal offer of Sicily for his son Edmund, which caused heavy financial demands and alienated the barons.”
Level 3 (5 marks): Developed explanation showing clear links to political difficulties, e.g. “The Sicilian affair involved massive financial commitments to fund papal campaigns in Italy. Henry raised taxes and demanded subsidies, angering the barons who saw no benefit for England. By 1258, spiralling debts had undermined confidence in the king’s judgement and led directly to baronial opposition, making the affair a central cause of reform demands.”