I think it was mentioned that Dominic (black hair academy principal) is the 2nd prince and the crown prince. The fourth prince is Michael (blonde playboy). He is the Empress’ son and was the Savier/Xavier saintess’ (Irene’s) fiancée.
Sorry, just a correction. I think Dominic isn’t the crown prince. Just the second prince. I’d have to find the chapter/s again to check.
Then maybe the translation is off because it just said he’s the fourth prince. Then the first born must be a princess or all the other princes are dead or sent over seas.
Like is it just the two? I thought Dominic was the crown prince but he’s the fourth? Like are there princess too? Like everyone in the imperial family should have been laid out a looooong time ago.