Others have already said it but damn I need to join the bandwagon because I'm so pissed at Sieg. He's a lot worse than I thought. I wouldn't say that took my by surprise but so far it seemed to me that his actions bordered between malice and idiocy.
But when he even tried to take Ellie back to that shithole of a country just so he could use her as a sacrifical pawn again, that went beyond stupidity. And he feels zero remorse for what he did to his own daughter, while apparently letting his son do whatever he wanted. Self-centered biased pigheaded asshole, he deserved what he got.
It was mentioned during the fight that Sieg was only serving that shitty royal family and not the country... Eiwass seems like a less straightforward (and less of an idiot) guy and when he says that he serves the country, he really means it. And right now the country's best interest is to get rid of the incompetent royal family, especially the trash prince. I wonder if he thinks the same.
So for the upcoming volume we have that prick who disguised himself as the elf top merchant and whatever Eiwass is cooking and the trash prince falling into another trap of that dodgy organization. And Ellie needs to select her next target.