Create a believable Kingdom of France under the House of York that is separate from the Kingdom of England.
Have the Lancastrians win then have Liz of York marry the Dauphin.Create a believable Kingdom of France under the House of York that is separate from the Kingdom of England.
Kinda breaks the point of House of York in control of France not England...Richard III kills Charles VIII in battle as revenge for Bosworth (he is victorious) during the struggle for Brittany, Maximilian marries Anne of Brittany and the York controls parts of upper Normandy and more of Picardy areas near Burgundy and Brittany. France wages war against holy roman empire and spain/portugal (non-hapsburgs) and then paris burns to the grounds as the grand finale of the italian wars. Sort of my TL!