In 1215, Prince Louis of France is invited by a large portion of English barons who have grown tired of King John's despotism and lack of regard for the Magna Carta. Eager to end the threat posed by his Plantagenet cousins and wanting to prove himself, Louis landed unopposed in England and was proclaimed as Louis I of England at St. Paul's Cathedral. After obtaining victories at Winchester and Rochester, Louis then moved onto northern England, where John retreated and fought on. However, working together with the King of Scotland, Louis was able to win outside of York and managed to capture John. Then, the captain of Corfe Castle sided with Louis and turned over his heir Henry of Winchester. In an Act of Parliament, Louis was confirmed as the new King of England and brought over many lords from France to oversee the distribution of the lands and estates confiscated by John's loyalist barons while empowering those who invited him to take the crown. He had both the deposed John and Henry locked in the Tower of London while he had to return to France to prepare himself for his inevitable succession to the French throne.
However, the King of Scotland was unsatisfied with the gains promised to him by Louis and he equipped Lord Salisbury to start a rebellion in Northern England. From that point on, Louis would show no mercy to any claimants to the throne and carried out a campaign throughout the north very similar to the Norman's Harrying of the North. He then invited his recently legitimized brother Philip to act as Lieutenant/Warden of England in his absence. The deposed John and disinherited Henry Plantagenet died in the Tower of London under mysterious circumstances, although many suspected that Philip had them starved to death in accordance with Louis' wishes to secure England after the northern rebellion.
Meanwhile, Louis was able to have his excommunication lifted by the pope while Rome acknowledged him as the new King of England. By 1220, all of England was under the control of the Capetian dynasty and Louis VIII was able to ascend to the French throne peacefully. However, he largely left England's administration largely in the hands of his brother Philip, who was granted the title Duke of Normandy and received the first English dukedom: Duke of Cornwall. Even though he was only 16 when he arrived in England, he turned out to be a talented political operator and military commander. He then married Joan of England, the only daughter of John Lackland, and they would have many children who helped to strengthen the Capetian rule in England. Louis visited England six times after 1220, while his brother Philip administered England as "king in all but name" as Louis had to turn his attention southwards during the Albigensian Crusade.
Over time, there would be cultural differences emerging between the "English" Capetians and the Capetians in France.
This is a thread that has been explored before.
However, the King of Scotland was unsatisfied with the gains promised to him by Louis and he equipped Lord Salisbury to start a rebellion in Northern England. From that point on, Louis would show no mercy to any claimants to the throne and carried out a campaign throughout the north very similar to the Norman's Harrying of the North. He then invited his recently legitimized brother Philip to act as Lieutenant/Warden of England in his absence. The deposed John and disinherited Henry Plantagenet died in the Tower of London under mysterious circumstances, although many suspected that Philip had them starved to death in accordance with Louis' wishes to secure England after the northern rebellion.
Meanwhile, Louis was able to have his excommunication lifted by the pope while Rome acknowledged him as the new King of England. By 1220, all of England was under the control of the Capetian dynasty and Louis VIII was able to ascend to the French throne peacefully. However, he largely left England's administration largely in the hands of his brother Philip, who was granted the title Duke of Normandy and received the first English dukedom: Duke of Cornwall. Even though he was only 16 when he arrived in England, he turned out to be a talented political operator and military commander. He then married Joan of England, the only daughter of John Lackland, and they would have many children who helped to strengthen the Capetian rule in England. Louis visited England six times after 1220, while his brother Philip administered England as "king in all but name" as Louis had to turn his attention southwards during the Albigensian Crusade.
Over time, there would be cultural differences emerging between the "English" Capetians and the Capetians in France.
This is a thread that has been explored before.