I have a suspicion that the notes signed by iCitizen are written by no one other than Derlieries, since his profile states that his Skype nickname is stizalliy, and such a signature could easily be created by simply relying on associations.
and why are you looking for clues on Mana?
I also tend to think that Winner is most likely a Baron, which means my random choice wasn't wrong, but I still don't rule out the possibility that he could have been an Inquisitor.
I thought Redhead was a Count, although according to the newspaper, he might be a Priest.