Very interesting, but I couldn't figure out which of the Ring-Wraiths you were writing about. I think you meant "throne," not "thrown."
Author's Response: I don't think it really matters which one it is . . . For sure, it's not the Witch-king; I've always imagined his downfall as rather bloodier. Yes, I did mean "throne," I can't believe I missed that, so thank you! NZ