Nay, nay, sorry. Sounds nice, but calling Théoden a pawn?

And there are still some unclarities, for example especially the part around the "tale of loss" would not really fit very smoothly, would it?
But good attempts, very nice attempts, I like them

But still waiting for the correct answer - it really fits perfectly once you get it (with correct and clear chronology of the account provided by the "Pawn" and all. Also a hint - figures removed the board do not return, so we have two different Knights in the beginning and in the end).