A hundred years ago, in FFXIV 1.0, when Estinien was first introduced he was most certainly a Duskwight. Let me see if I can pull something up.
http://i.imgur.com/Q2Xjix5.png
Even more damning is in 1.0 you couldn't blur the lines of the clans as readily as you can nowadays.
I've lost all of my 1.0 screenshots to a rather unfortunate accident so I had to grab this from this youtube video: https://www.youtube.com/watch?v=0fPfJaGMetI
