The guy who gave her the handkerchief / the wizard guy
... Spoiler for those who haven't read any of it ...
I think from memory Vinter was the Magician who was hiding the children with magical abilities and the guy with the rabbit mask (who the MC goes to to help find the long lost sister). I'm pretty sure he is the one that gave the MC the handkerchief when the Crown Prince cut her throat...
Omg I remember now but that feel soo long ago my god
I know right?? Feels like i read this ages ago.
I can't for the life of me remember who vinter is, the guy with white hair