Talk:Dragon Slayer Ornstein/@comment-222.144.173.69-20161007152926/@comment-4511886-20161010122747

You're missing the context here. The Knight in question guarded "the ruined cathedral." "The" is a keyword here, since it means the reader knows the cathedral in question.

There are three cathedrals in the Dark Souls series. These are the Cathedral of the Deep, the Cathedral of Blue and the cathedral in Anor Londo. The Old Dragonslayer had black armor, whereas the armor in Dark Souls III is golden like Ornstein's. Meanwhile, there are no named Knights that protected the Cathedral of the Deep. This means that Anor Londo's cathedral must be the cathedral mentioned in the description.

With this in mind, there are two possiblities:

1. Ornstein went after the Nameless King, and somehow survived the encounter with the Chosen Undead.

2. There is an imposter that managed to get their hands on a perfect copy of Ornstein's spear and armor, complete with infusions, that also guarded the Anor Londo cathedral, all the while avoiding the lore from mentioning him even once.