Well in this timeline, John of gaunt Have a son With Constance of Castile and managed to force her claim to the Castilian throne And Henry IV Manages to overthrow Richard II, How would the timeline with this Scenario develop?
Scenario bonus: Henry V still appears, he doesn't need to be brilliant like OTL, but with the help of his uncle in Castile he managed to defeat the French, but he still dies and is succeeded by an incompetent son, Leading to the war of the roses, In a scenario like this, what changes in the war of the roses, would the Castile Lancasters get involved in?
Scenario bonus: Henry V still appears, he doesn't need to be brilliant like OTL, but with the help of his uncle in Castile he managed to defeat the French, but he still dies and is succeeded by an incompetent son, Leading to the war of the roses, In a scenario like this, what changes in the war of the roses, would the Castile Lancasters get involved in?