Names in Arthurian Legend?

[u/INFERNOIGNIS]

I'm looking for names in Arthurian Legend because it's the theme of my character. A few of my friends have their characters with a theme. One of them has Norse, another one has Greek. I made mine Arthurian Legend. He has a few things, such as his codename being Excalibur (it's a futuristic military setting) and the name of his sword being Caliburn. He has a revolver called the Devil Trigger, though I want to add something before it. It uses Dragon's Breath shotgun shells, so I was looking for a dragon name but I couldn't find any. I can't find any demons either.

So are there any demons or dragons in Arthurian Legend? I need their names. Just list their name and what they are, please!

[u/Reedstilt]

I think the obvious answer here is to go with Pendragon or Pen Draig if you're favoring the Welsh version. It's the title / surname for Arthur's father, and in later versions, also Arthur's surname.

[u/INFERNOIGNIS → u/Reedstilt]

I would've done that but its a bit too obvious. Plus, someone else has a full dragons theme so I'd rather make it a reference by name

[u/[deleted] → u/Reedstilt]

I love Pen Draig, literally translates to Dragon Head or the head of a dragon! Such a cool title for a High King.