Board Thread:Lore Discussion/@comment-24241449-20131202233828/@comment-24597741-20131202234530

Yes, you meet 16/17, although the reasoning is Sheogorath(Daedric Prince of Madness) turns into Jyggalag the Daedric Prince of Order at every turning of an Era, in Skyrim, you meet all 17 in Oblivion(Jyggalag is the main antagonist(Sheogorath is the main protagonist) of the Oblivion add-on Shivering Isles).