Yes. It is and Isabel I can die in peace knowing Castile is safe in Isabels hands and she can spend the last months of her life doting on her grandchildren
Screw it, I'm gonna do it, just you wait a little while! *rubs hands with glee* I'm not a good writer, but if people wants a different iberian history, I'm up for it.
....do people want this timeline? I'm not a very good (or confident writer)