he can but every king needs a queen and a king and queen needs a children that can rule the whole kingdom for the next new generation,how will they able to have a kid if they are both men (im not saying that i dont them to be together)
want**
Wolfgang has many siblings bcs of that dumbass former king. They can just choose one of them lol. To be honest, after Wolfang's crazy love declaration in Season 3, I'm pretty sure he won't marry anyone that's not Shin. So I think they'll choose one of Wolfang's siblings or someone that's suitable but doesn't have royal blood. I don't think this manhwa/kingdom goes with the common route...I mean the former pedophile king was crazy asf already and Wolfang saved them from him. I don't think they would've anything against their relationship/marriage, especially because the same sex marriage is legal there and everyone knows about their relationship already lmao.
they would be against*
LET THIS BE A SIGN AND REMINDER FOR SHIN THAT HE CAN MARRY WOLFGANG T.T although i guess he will still deny it ╥﹏╥