Edmund, I think, to Corin after Corin had caused the dwarf who was minding him to twist his ankle.Ok then, next quote: "See what your Highness has done. Deprived us of a proved warrior on the very edge of battle."
"And above all, let everything be as trim and scoured as if it were the morning of the first battle in a great war between noble kings with all the world looking on."
Is it king tirian in the Last Battle? It sounds like him. Then again it could be Drinian or someone from the Voyage of the Dawn Treader?