Mukhali, the chief commander in Genghis' protracted invasion of the Jin Dynasty, seizes Mizhou, in the southeast of present Shandong province, and orders all the inhabitants massacred.

The Khitans under Yelü Liuge, having declared their allegiance to Genghis Khan, establish a nominally autonomous state in Manchuria in 1213.

However, the Jin forces dispatch a punitive expedition against them.

Jebe returns and the Mongols push out the Jin forces.

Dessau, located on the Mulde River near its confluence with the Elbe, and earlier settled by Wends, is first mentioned as a German settlement in 1213.

Llywelyn takes the castles of Deganwy and …

…Rhuddlan in 1213.

Pope Innocent III's Final Ultimatum to King John (February 1213)

By February 1213, after years of defiance from King John of England, Pope Innocent III issued a final ultimatum, threatening stronger measures unless John submitted to papal authority. This marked the climax of a long struggle between the English king and the Papacy over the appointment of Stephen Langton as Archbishop of Canterbury.

The Papal Threat and Its Implications

1. Further Church Sanctions

   • England had already been under interdict since 1208, forbidding church services and sacraments.
   • John himself had been excommunicated in 1209, meaning he was cut off from the Church and Christian sacraments.
   • Now, Innocent III threatened even stronger measures, including:
     • Declaring John’s subjects free from allegiance to him.
     • Authorizing his deposition and replacement by another ruler.

2. Authorization of Philip II’s Invasion

   • Pope Innocent formally empowered Philip II of France to invade England to execute John’s deposition.
   • Philip had already been preparing an invasion fleet, aiming to install his son Prince Louis as King of England.
   • If John continued to resist, Philip would be justified not just as an enemy of England but as a champion of the Church.

John’s Submission to the Papacy (May 1213)

• Realizing that he could not fight both Philip II and his own rebellious barons, John submitted to the Pope in May 1213.
• He publicly surrendered England and Ireland to Pope Innocent III, receiving them back as a papal fief and agreeing to pay an annual tribute to Rome.
• This outmaneuvered Philip II, as Innocent immediately revoked the invasion order, depriving Philip of a justification for war.

Consequences of John’s Submission

• England became a papal vassal state, securing papal protection but humiliating John in the eyes of his nobles.
• Philip II lost his excuse to invade England, forcing him to redirect his ambitions elsewhere.
• Baronial resentment in England intensified, leading to the rebellion that resulted in Magna Carta (1215).

John’s political survival in 1213 was a masterstroke of diplomacy, but it came at the cost of further alienating his nobility, setting the stage for internal unrest and the eventual baronial revolt.

Philip II’s Final Preparations for the Invasion of England (1213 CE)

By 1213, Philip II of France was making final preparations for his long-planned invasion of England, seeking to depose King John and install his own son, Prince Louis (the future Louis VIII), on the English throne. To ensure full support from his vassals and papal legitimacy, Philip carefully framed his attack as a religious crusade, denouncing John as an enemy of the Church.

Philip’s Assembly at Soissons and the Resistance from Flanders

• Philip summoned his French barons to an assembly at Soissons, presenting the invasion as a holy war sanctioned by the Pope.
• The meeting was well attended, but Ferdinand, Count of Flanders, refused to participate, still furious over the loss of Aire and Saint-Omer, which had been seized by Philip’s son, Prince Louis (Louis the Lion).
• Ferdinand demanded the return of his lost towns before committing his forces, creating a diplomatic challenge for Philip.

Philip’s Political Maneuvering: Reconciling with Ingeborg of Denmark

• To bolster his claim to the English throne, Philip announced his reconciliation with his estranged wife, Ingeborg of Denmark, whom he had rejected since their marriage in 1193.
• This move was not driven by sentiment, but by calculated political strategy:
  • The Popes had been pressuring Philip to take her back, and this move would win papal favor for his invasion.
  • Ingeborg’s Danish royal connections provided Philip with a potential claim to the English throne, as England and Denmark had historical ties through Cnut the Great's North Sea Empire.

Support from the French Nobility and the Papacy

• The French barons fully backed Philip’s plan, agreeing to gather their forces for the campaign.
• Throughout this time, Philip remained in close contact with Pandulf Masca, the Papal Legate, who encouraged the invasion, as John had already been declared deposed by Pope Innocent III.

Outcome: The Collapse of the Invasion Plans

• Despite Philip’s meticulous preparations, his planned invasion was abruptly halted when John made a dramatic submission to the Pope in May 1213.
• John surrendered his kingdom to Pope Innocent III, making England a papal vassal state, thereby removing Philip’s justification for invasion.
• The Pope revoked Philip’s permission to attack, leaving the assembled French forces without a target.
• Instead of invading England, Philip redirected his forces to fight against Flanders, leading to the Battle of Bouvines in 1214, where he won one of his greatest victories.

Philip’s assembly at Soissons in 1213 marked the peak of Capetian ambitions for the conquest of England, but John’s unexpected submission to the Pope forced Philip to abandon his plans, shifting his focus back to the conflict in continental Europe.

Innocent III has since 1208 been planning a crusade in order to destroy the Ayyubid Empire and to recapture Jerusalem.

In April 1213, Innocent issues the papal bull Quia maior, calling all of Christendom to join a new crusade.

Pandulf is also holding secret discussions with King John.

Advising the English king of his precarious predicament, he persuades John to abandon his opposition to Papal investiture and agree to accept the Papal Legate's decision in any ecclesiastical disputes as final.

In return, the Pope agrees to accept the Kingdom of England and the Lordship of Ireland as Papal fiefs, which John will rule as the Pope's vassal, and for which John will do homage to the Pope.

Philip II’s Planned Invasion of England Halted and Redirected Against Flanders (1213 CE)

No sooner had King John of England submitted to Pope Innocent III in May 1213, thereby making England a vassal of the Holy See, than Papal Legate Pandulf Masca informed Philip II of France that he must abandon his invasion of England.

Despite Philip’s meticulous preparations, the Pope’s new stance rendered the invasion illegitimate, as attacking a now-faithful vassal of the Church was deemed a mortal sin.

Philip’s Arguments for Continuing the Invasion

Philip made several desperate arguments to Pandulf:

1. His war plans had been sanctioned by the Pope himself, and he had proceeded under papal authority.
2. The invasion was in defense of the Church, since John had long been an enemy of the Papacy.
3. He had spent an enormous fortune preparing for the expedition.
4. He had been promised a Plenary Indulgence, meaning his campaign was considered a Crusade in all but name.

However, Pandulf refused to be moved. With John now under papal protection, an attack on England was no longer justifiable.