I'm a PS3 player, I platted the game days ago, & when I obtained my Knight's Honor, I don't have the below 4 weapons in hand, guys can double confirm this at Japan Wiki as well. You need Demon's Spear, & this is not in the list.
Weapons not needed:~
Jagged Ghost Blade
Titanite Catch Pole
You don't need Black Bow Of Pharis for the achievements as well, although I have it in hand.
Last edited by Frogcat; 10-15-2011 at 09:29 PM.