I'll quote myself from a page or two ago:
A lot of NPCs seem to misjudge the Dovakhiin at first. He/She always seems to exude an aura of sheer idocy to other characters upon meeting them, until they realize the Dovahkiin kicks all kinds of ass.

Both civil war factions test you and expect you to likely die a horrible death to brigands/ice wraiths. As to her simply having said she just knew Torryg's thoughts on the matter, that might have just been due to her choice of words that it seemed she just sensed his intent. As far as her assuring Elisif of Wolfskull Cave's safety, it might have been an attempt to not alert the Jarl into dispatching a whole legion (why do that when there's adventurers around, eh?

). I also have a feeling she may secretly be a Janus Hassildor type, you'll notice this if you toss a Turn Undead her way or a Detect Life/Dead, which in that case doesn't put supernatural knowledge out of the question

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If Torygg wanted to secede, he would have started the ball rolling. That's the bottom line. He's the king, and inexperienced or not the buck stops with him.
Half his Jarls plus many of his personal attendants supported the Empire. It would not be an easy or quick decision to make. I can understand him being cautious in making such a decision unless directly advised to do so and assured of support by Ulfric and the other eastern Jarls.
I can agree with this. All it establishes is that Torygg accepted the challenge willingly.
Alright, cool. Now for the part you likely won't

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To say he accepted willingly is a bit much. Ulfric saw his inexperience and by challenging him, put him in a Catch-22. It was either abdicate his father's throne (he liked Ulfric, but not enough to allow himself to be dethroned for him to take power. Not sure if the Moot could have allowed for candidates other than Torryg and Ulfric or if any of the other Jarls would have tried for it, but Ulfric certainly would have) or he could fight him in a duel, though likely to die, and reach Sovengard without shame. Not much choice there, so he went for #2. Even assuming were going by ancient Nord tradition and all of this is perfectly fine by legal standards (Though I find it laughable that this ancient seemingly unwritten code still holds sway, it's like using Hammurabi's code just because it's old. I doubt this particular one would fly in Germanic countries where they did practice this during more barbaric times.) , it's pretty dishonorable. He could've tried it the peaceful way, but I maintain Ulfric wanted it to come to this so he'd get a chance to be High King.
Question to all: Was Roggvir murdered?
Very similar to the first, it would depend on if you use ancient Nordic law or present day Imperial law. Which laws you use depends on if you think Skyrim is still an Imperial province or not. Solitude is a city within the Empire's influence at the time of the duel. Even if old Nordic ways like this one were valued as laws, provincial law should not apply where Imperial law supersedes it. Like here in the US, Federal law > State law in every case where the two contradict. So yeah, under the law governing the hold the crime was committed in, he aided an enemy of the state in entrance and escape and is guilty of treason under Imperial law.