King John and the Crisis of the English Crown
- 1 May 2026
- 1 Comment
- 13 Min Read
Overview
King John’s troubled reign saw the collapse of the Angevin Empire, conflict with the Church, rebellion among the barons, and the sealing of Magna Carta in 1215. His military failures, political disputes, and strained relations with the nobility transformed the English monarchy and reshaped the balance of royal power in medieval England.
Cite This Work
Bega, T. (2026). Medieval History – King John and the Crisis of the English Crown. Medieval History – Yesterday in a Nutshell. https://historymedieval.com/king-john-and-the-crisis-of-the-english-crown/
The Rise of the Plantagenets
Portrait of King John, unknown artist, 1597, 22.75 in x 17.75 in, oil on canvas, National Portrait Gallery.
In 1154, after a period of civil war known as ‘The Anarchy’, a new dynasty was formed. Known as the Plantagenets, who originated from the Duchy of Anjou in France, they would go on to shape England for the next three hundred years. King Henry II ascended the throne following the death of King Stephen during a power struggle between his mother, Matilda, and her cousin Stephen, lasting almost twenty years. England, in fact, dealt with many issues and civil wars throughout the Middle Ages between the nobility and the common people.
Henry II expanded an empire called the Angevin Empire, which stretched across England, Scotland, and Ireland, as well as lands held in France. Henry married Eleanor of Aquitaine, whose marriage to Louis VII of France was annulled in 1152, allowing the powerful duchess to forge a new marriage with Henry. This brought an alliance with the powerful Duchy of Aquitaine.
Eleanor gave birth to ten children during her two marriages, most of whom survived into adulthood. Three of those sons became known in history as Henry the Young King, Richard the Lionheart, and King John. The youngest of Henry’s sons, John, turned England into a rebellious realm, ending the growth of the Angevin Empire that his father once sought to expand throughout Europe, which affected the morale of the common people.
The Angevin Empire is important, especially in connection with the various conflicts with France over land and control and how the kingdom could connect with the common people. By 1190, the empire stretched across half of France and into parts of Scotland and Ireland. King John, at a young age, was given control of Ireland, becoming Lord of Ireland. Still, his military leadership led to an unsuccessful campaign, challenging what the future of leadership would be. The mindset of John also comes into question: was he fit to be king, especially with the failures that occurred under his reign and the way they changed the structure of the monarchy forever?
How Do We Know Who John Was?
When looking into who John was (1166–1216), he was known to be a favourite of his father and was granted the County of Anjou and various lands as a child (McLynn, 2007, p. 29). Throughout his childhood, John travelled back and forth in the care of wet nurses, staying mainly at Fontevrault Abbey (McLynn, 2007, p. 27).
John’s Early Life and Ireland
John’s education is a factor, especially in the case of not being meant to become king, which may have led to certain incapabilities when ruling in the future. John was the youngest of eight children between Henry and Eleanor.
In 1173, his older brother, Henry the Young King, led a rebellion with Richard against Henry II over granting the six-year-old John Chinon and various other lands, when they were meant to be granted to the Young King. Henry II knew John was his favourite and allowed Plantagenet tensions to come into play, with all the sons fighting for control of the throne.
In his early teen years, he was made Lord of Ireland at the age of ten. In 1185, after visiting Ireland for the first time, the venture turned out to be unsuccessful due to opposition in the region against the Plantagenets. His comments towards Irish customs and fashion reflected Henry’s turbulent relations with Ireland, which dated back to at least 1167 (McLynn, 2007).
Ireland proved to be a mess for the young prince, both diplomatically and within Church affairs, but most important were John’s comments judging the Irish people. This can particularly be viewed as an indication of how John would act in the long run, especially as a future king of England.
Richard the Lionheart and John’s Ambition
After the death of his father in 1189, his brother Richard was known for his absence throughout his reign, from being held captive to spending time in Aquitaine and fighting in the Crusades, which gave an advantage to John.
Due to the king’s frequent absences abroad, a regency council was formed in which John was prominent, pushing his schemes to the forefront. In 1193, John attempted to declare himself king whilst Richard was held captive within the Holy Roman Empire for a period of two years. However, this event was short-lived, as Richard soon returned home, allowing John little opportunity to interfere further with the monarchy (McLynn, 2007).
This reveals a prominent issue that would become a constraint throughout John’s reign: his relationship with the nobility. During Richard’s reign, most of Henry’s empire remained intact. The new king of France, Philip II, perceived Richard’s absence as a chance to attack territories, including Gascony and Brittany, leading to a prolonged conflict that, ultimately, John could not handle.
John took the throne in 1199, following the death of Richard after a reign of ten years.
The Rule of a Tyrant
To consider why John took the throne is to understand the widespread challenge posed by another claimant to the crown.
The Murder of Arthur of Brittany
One account discussed by author Frank McLynn notes John’s desire for power during Richard’s reign and Richard’s consideration of making his nephew Arthur, Duke of Brittany, his heir (McLynn, 2007, p. 279).
When Richard died with no heirs, the line of succession passed to Geoffrey’s son, Arthur. In comparison, John was also the next surviving son of Henry II, allowing the crown to pass to him as Richard’s brother. This led to a dispute between Arthur and John over who should take the throne.
Arthur was murdered in 1203 by John after his rebellion failed.
John’s Failures as King
Before becoming king, John spent much of the 1190s, especially while Richard was away, attempting to claim himself as the true heir, while paying little attention to military strength. Arthur’s claim was connected to his father being the son of Henry II.
John was not a skilled military commander like his brother, nor did he possess the qualities required to lead successful military campaigns, shattering his father’s hopes of continuing the empire.
The nobility were furious at John’s failures as king, and the loss of Normandy proved to be a huge blow to lands so precious to the English crown. At this point, John had lost the support of many around him, despite needing as much loyalty as possible.
The Angevin Empire, which once controlled large parts of France, was lost to the power-hungry Capetian dynasty in France. John also faced a challenge from the Church over the election of an archbishop. John chose John de Gray, a decision that Innocent III did not approve of, leading to John’s excommunication in 1209 and the loss of support from the Church.
The barons did not stand a chance whilst their corrupt king plotted against his own people and enjoyed a lifestyle of lavish expense, which can be argued as evidence that John was not suited to be king.
An End of an Empire
King John signs the Magna Carta – Doyle, James William Edmund (1864). “John” in A Chronicle of England: B.C. 55 – A.D. 1485, London: Longman, Green, Longman, Roberts & Green, pp. p. 226. Retrieved on 12 November 2010.
In 1213, an alliance with the Holy Roman Empire saw John attempt to reclaim the lands previously lost to prove his authority as a ruler. This did not play out as intended and proved disastrous, illustrated by the Battle of Bouvines in 1214, which gave Philip sole control of Normandy.
Magna Carta and Rebellion
The year 1215 changed English society forever, as the barons of England came together and challenged the weakness of royal power and control, beginning the First Barons’ War.
John refused to acknowledge the demands from the barons that led to the Magna Carta, a charter limiting the powers of the king. The barons met on 10 June 1215 at Runnymede, where John signed the agreement allowing the barons greater control within the realm (Carpenter, 2015).
The charter included 63 clauses, ranging from laws of war to the right to a fair trial. The Magna Carta was revisited on multiple occasions throughout the thirteenth century, with amendments and additions, including Clause 7 regarding women’s inheritance rights and Clause 38 stating that no trial could proceed without evidence (Carpenter, 2015).
The Magna Carta proved to be a huge blow to John, as his inability to communicate effectively with his own people demonstrated the wider failures of his leadership.
The French Invasion and John’s Death
John faced another threat when Louis, the son of Philip II, planned an invasion of England, claiming he was the rightful king. Louis arrived in London to thousands of supporters who gathered to welcome the prince. He proclaimed himself king at St Paul’s Cathedral, although he was never crowned.
John, now furious, gathered as much support as possible, knowing that his life and throne were on the line. Louis took over most of southern England, with many rebel barons supporting him, including those controlling Windsor and Rochester.
Opposition to John grew rapidly, but on 19 October 1216, John died from dysentery, leaving the kingdom fighting for its survival.
The war did not end until 1217, as many barons shifted their support in favour of the monarchy and the nine-year-old Henry III, while Louis steadily lost territory. On 11 September 1217, the Treaty of Lambeth was signed, ending the war.
John was a king who was never expected to rule, being the youngest in the family. Henry the Young King died in 1183, passing the succession to Richard, while Geoffrey’s death in 1186 moved John even closer to the throne. These issues highlight how ill-prepared John was, especially considering that he was never originally intended to become king.
Further Reading
Frequently Asked Questions
Who was King John?
Why is King John considered a weak king?
What was the Angevin Empire?
Why was Magna Carta important?
What caused the First Barons’ War?
How did King John die?
Did King John really sign Magna Carta unwillingly?
Why did King John lose Normandy?
Sources
Asbridge, T. (2015). The greatest knight: The remarkable life of William Marshal, the power behind five English thrones. Ecco.
Carpenter, D. (2015). Magna Carta. Penguin Books.
McLynn, F. (2008). Richard and John: Kings at war. Da Capo Press.
Morris, M. (2016). King John: Treachery, tyranny and the road to Magna Carta. Pegasus Books.
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Talia Bega
Talia Bega is a historian, writer, and content creator specialising in medieval and art history. A self-taught historian with a long-standing passion for the humanities, she focuses particularly on the Plantagenets, Capetians, the Hundred Years’ War, and the cultural world of medieval Europe. She is currently studying at the American University of Rome while also developing independent historical research and writing projects.
Through her platform, History With Talia, she publishes articles, reflections, and historical commentary exploring medieval politics, royal courts, warfare, and art history. Her work combines narrative storytelling with accessible historical analysis aimed at engaging modern audiences with the medieval past. She has also hosted history-focused podcast discussions and is currently working on her first book, centred on Isabeau of Bavaria and the political world of late medieval France during the reign of Charles VI of France.
Inspired by historians such as Dan Jones and Tracy Borman, Talia’s work reflects a strong interest in bringing medieval history to wider audiences through digital media, independent scholarship, and public history writing.
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