Sorry, it was AGES ago when I fought him in glorious battle, so I'm a little rusty on the details.
Turns out, he is the last mask that I need for that weird shrine in the Labryinthian.
So...I go back to Ragnvald Temple, and there is NOTHING!!!

What do I do? Am I just screwed out of that particular mystery?
Btw, I beat the main quest last night, so I collected the 20 shouts and stuff, if that helps.

The dragon priests leave ash piles where they died, they last forever. Search it.

You're certain? I looked all over the sarcophagus and the old word wall.
Those piles are supposed to glow, too! I pray I didn't toss the mask away like a used tissue.

Yeah, they do leave one. Im also sure ash piles never disappear.
Weird. did the dungeon reset? Did you fight new enemies? Because if thats the case, it might also affect ash piles. I dont really know.

I will go back and double check. I'll even return to the Labrynth to see if I was mistaken...I dunno...
Hunting and killing the Dragon Priests was kinda my thing for a while. It'd be sad if I never find the last mask for my collection.