When King Charles VI of France signed the Treaty of Troyes in May 1420, naming Henry V of England heir to the crown of France in place of his son the Dauphin Charles, Dauphin Charles could not have guessed that Henry V would die so young, and actually pre-decease Charles VI. History demonstrates that he was not at all happy to have his birthright taken away and granted to a foreigner (even if it was his brother in law), and I’m familiar with what happened after the death of Henry V and Charles VI. What I’m interested in, however, is what sort of activity Dauphin Charles involved himself in between the treaty in spring 1420, and the disputed succession in fall 1422.

Did Dauphin Charles defy the Treaty of Troyes and immediately begin raising armies or rallying support for himself whilst both his father and Henry still lived? Did his father support him or oppose him in this? Were there any factions in the French court that supported Henry (and heirs) over Dauphin Charles at this time, due to matters of honor or preference? The estates-general did ratify the treaty… were there significant factions of the population that supported the English claim? Is there any evidence to suggest that, had Henry V lived, he would have had sufficient support to truly maintain the dual monarchy that fell apart under his son, or was the entire French nation pretty much united in opposing the dual monarchy, regardless of who held the throne?