Yes they do respawn. If you need certain black knight weapons, let us know what console and your soul level. I have TONS of extras because its like a 50-75% drop rate for their weapons.
Thanks for the offer. Im currently playing a dex/faith build. Not really any needs for bk weapons. Perhaps if i start playing my str/end toon again yes. This community is amazing as well. I cant say it enough! (Though I think I have said it in every post so far) I hope From reallu understands what they truely have here.