
Is he ... Umm ... Infertile or something?

No it has something to do with his bloodline. His people can't have children w/ people who are not of their descent. Of course everyone is a little mixed w/ their blood line except the royal family. So Violet is the only woman in the empire who can't have Winter's children, because she is a "pure-blood" royal.
WHITE HAIR HOTTIE HIS NAMES HARD