Is it known that the Knight opened the Chapter 1 & 4 fountains?

On the wiki page for Dark Fountains, Kris is (quite obviously) mentioned to be the creator of the Chapter 3 fountain, and Queen claims to know that the Knight made the Chapter 2 Dark Fountain.

But it doesn’t seems like there is any confirmation that the Knight made both the Chapter 1 & 4 Dark Fountains, and the wiki does not provide a citation for either, Did I miss confirmation of theses facts, or was it accidentally assumed to be true?

If it’s the former, could citations be added?, and if it’s the latter, I think the article should be reworded slightly (probably either “created by the Knight or one of their allies”, or “created by a yet unknown party“).

They were probably, but not definetly, made by the KNIGHT.
The chapter 4 fountain at least.
I don't know about chapter 1.

Chapter 4 and 2 don't have the Cliffs section that Chapter 1 and 3 have, Chapter 3 fountain was made by Kris and it is logical Chapter 1 might have been too.

I am currently in no stable position to reply intelligently to that post.
In the meantime, please enjoy this complimentary image: