This means that sometimes what actually happened historically will be warped to make one side seem more righteous.
The barons stand beside Arthur, and would make him king, because it is "God's will", and because he is king, they deem their loyalty with him, and would protect him at all cost.
So the barons are loyal, and would give their all to defend the rightful king
hope this helps
<span>Peripeteia seems to be the answer from what i can gather from my Brit lit class.</span>