Queen Gerhyld was mortally wounded by an assassin and High King Svargrim sees your presence as an insult and wastes no time in blaming you and Lyris for his wife's death. When you return from Kilkreath Temple to report to Queen Gerhyld with proof of the Coven threat to Western Skyrim, you will find the mood somber within the Blue Palace.
Svargrim is protected by Swordthane Uthlet after the attack