Board Thread:Lore Discussion/@comment-7889951-20140506050324/@comment-64.30.104.175-20140507043408

I think this line from the Looking Glass Knight Soul helps the theory greatly.

"Long ago, the King's Passage was a route taken by the bravest warriors to prove themselves, but now it only prevents one from pursuing the runaway king."

The only reason King Rendal decided to march on Anor Londo was to prove himself and his knights and lead them to glory. The Ring of Steel Protection was created by the Balder. If this were any other game it would mean nothing, but this is FromSoft we're talking about. The very fact that the Looking Glass Knight has a Ring of Steel Protection means that the Looking Glass Knight is at least somehow related to Balder.

As for Tark... He's quite obviously Iron Tarkus with the same reasoning. This is FromSoft. They could have named him anything, they picked Tark and then on top of that related him to Seath for a reason.