I'm not 100% sure if Aserit knows or not. Still, I was under the impression that Nydewia was going to be there for the negotiations as a way of saying "We're going to be allying with Nydewia so if you don't come to terms of peace, you're going to have to fight the two of us."<br/><br/>If the Queen is assassinated it would increase tensions between Theiri and Aserit, thus increasing the chances that the two might go to war. This gives Nydewia considerable leverage as both sides would be trying to either persaude Nydewia to ally with them or failing that, sit out the war.