honestly cucking a royal twice is pretty good revenge for starters hopefully he got some of his mothers talent for making strong spells and potions and that he actually reads and uses the books instead of gathering dust in a hidden cubby hole
Also pretty sure if this is the set up that he might be Diana's father as a way to really include him in the show. If he isn't her father it would still be funny because then he would've f***ed her grandmother and mother