Board Thread:Online Discussion/@comment-25340654-20141010201330/@comment-131727-20150215080836

Draevan13 wrote: Raven biter 114 wrote: Is Zurin's Spell still guarding the Armour, or is the pathway to the Armour just blocked off? You don't see the way to the Armour, but there are several blocked passageways. Indeed, it wouldn't make sense to be able to get to the armor considering...The armor isn't there yet. Tiber Septim wasn't even born at this time.

And if it was an earlier Emperor's armor, even then, you wouldn't be able to get it, because it's meant to be there so you can get it in Oblivion.