King Henry III - Historic UK

On September 12, 1217, French prince Louis and English King Henry III signed a peace treaty. A short excerpt from the article:

"As he was not yet of age, John had arranged for a council made up of thirteen executors who would assist Henry. He was placed in the care of one of the most well-known knights in England, William Marshal, who knighted Henry, whilst Cardinal Guala Bicchieri oversaw his coronation on 28th October 1216 at Gloucester Cathedral. His second coronation took place on 17th May 1220, at Westminster Abbey.

Despite him being considerably older, William Marshall served as protector to the king and successfully defeated the rebels at the Battle of Lincoln.

The battle commenced in May 1217 and served as a turning point in the First Barons’ War, with Marshal’s victorious army looting the city. Lincoln was known to have been loyal to Louis VIII forces and thus Henry’s men were keen to make an example of the city, catching French soldiers as they fled south as well as many of the treacherous barons who had turned against Henry.

In September 1217, the treaty of Lambeth enforced Louis’s withdrawal and ended the First Barons’ War, putting the animosity on pause."