I only know five of the seven. Or is the saintess supposed to have nine? I don't remember.
Noelle (of course), Ahuin (Noelle's boyfriend), Julius (ML's brother), Banessa (the redhead in the ML's delegation), and another one of the mom's wings who rejected her (he's a prince who refused to serve the fake saintess and burned down her palace, which is why he hasn't appeared; his dad has him locked up in prison until he agrees to serve the saintess).
That's reincarnated.
One of the FL's Wings resurrected Julius (same body, same soul, same memory) later on in the novel. He wanted to die again because of his vision, but the FL and ML convinced him that they could escape the tragedy without him needing to be sacrificed. So Julius is alive for the rest of the novel.
Yeah, please remember that the mother was only supposed to be a "temporary" Saintess, and her powers expired when the FL was born. As a real Wing, Ahuin is meant to pass on to the true Saintess (the FL).
The mom's wings are either fake (psychopaths with powers), defective (ie, only loyal to the FL, like Noelle), or expiring (regaining freedom from mom, like Ahuin). Only the "expiring" wings are/were actually loyal to the mom; the fake wings mostly just enjoy their power.

HOW CAN THEY BE SOOO FREAKINNN CUTEEE …can yall spoil me who is gonna be her wings?????