yeah I kinda just assumed that they all died because Neviro mentions in his journal that he escaped with his mother and baby siblings with no mention of older siblings, maybe they left the family before then or they died with his father we don’t know bruh.
And yeah, I think the rest of Neviro’s family should all be mages because it’s implied heavily in the journal that they all are.
He could even be a diplomat or envoy of a lost kingdom…
Calvus also states that Neviro is the last prince of Winterveil and that they had been looking for him for years, so I think that it’s safe to say that they’ve all been assassinated.
the more I try to think about how this timeline was constructed the more i think vetex is clinically insane. 
Also, a bonus migraine 
Anyone wanna bet that Tech is actually a Neviro glazer and wants him to be more of a relevant character, so he is trying his best to slide something in for Neviro in the story, under Vetex’s nose without him being bothered by it too much; While for Vetex, the only thing to remember Neviro by is that he is an albino.
if you look at vetex’s favorite Character list. neviro isn’t even there lol
i did not make it myself, i just spread the news
cited and everything