I've tried looking for information about this man, but I haven't found anything, so...might as well ask here.

Over North Shroud at The Bobbing Cork Inn, there's this Roegadyn Thaumaturge NPC (untargetable) on the second floor, who's looking at a painting mumbling the word "Master..." :



There's no mention on who he is, nor who's this master he's talking about, which makes it all mysterious...

Does anyone know who he is exactly?
Or was he just thrown in randomly (in which case, seems a bit strange for something so cryptic...)?