Henry V's son, Henry VI, becomes king in 1422 as an infant.

His reign is to be marked by constant turmoil due to his political weaknesses.

While he is growing up, England is ruled by the Regency government.

The Regency Council attempts to install Henry VI as the King of France, as provided by the Treaty of Troyes signed by his father Henry V, and leads English forces to take over areas of France.

It appears they might succeed due to the poor political position of the son of King Charles VI, who has claimed to be the rightful king as King Charles VII of France.

However, in 1429, Joan of Arc begins to lead a military effort by the French to prevent the English from gaining control of France.

With her help, the French forces are able to push the English forces back and to regain control of French territory.