In 1283, Edward I conquered Wales, and shortly after send the daughters of it's last 2 independent rulers into confinement for the rest of their lives, most of them had by the last one and 1 had by his brother, Llywelyn, with the daughter of Simon de Montfort, with the girl being only a year old.
In the following year, Edward had a son, named Edward, and months later said boy became his heir when his brother, Alphonso, died at age 10.
Now, I don't know when Edward's betrothal to Isabella of France occurred, but lets say that here it doesn't occurs, and Longshanks decides for marrying the heir of the "Last Prince of Wales" (as the reason why her and her cousins were sent to nunneries was because they could pass the inheritance).
Why? I don't know, let's say a rebellion in Wales so extreme it was a real fear they could gain their independence again, and he decided for it even if he has a beef with her maternal family. How? The 2 of them are only 2 years apart in age, and she is technically still royalty. When? Toddler age or early childhood
What could it mean for the reign of Edward II or the Plantagenets? And (if the subsequent centuries evolve in a relatively similar manner to OTL) what could it represent to the relations between the English and the Welsh?
In the following year, Edward had a son, named Edward, and months later said boy became his heir when his brother, Alphonso, died at age 10.
Now, I don't know when Edward's betrothal to Isabella of France occurred, but lets say that here it doesn't occurs, and Longshanks decides for marrying the heir of the "Last Prince of Wales" (as the reason why her and her cousins were sent to nunneries was because they could pass the inheritance).
Why? I don't know, let's say a rebellion in Wales so extreme it was a real fear they could gain their independence again, and he decided for it even if he has a beef with her maternal family. How? The 2 of them are only 2 years apart in age, and she is technically still royalty. When? Toddler age or early childhood
What could it mean for the reign of Edward II or the Plantagenets? And (if the subsequent centuries evolve in a relatively similar manner to OTL) what could it represent to the relations between the English and the Welsh?