User blog comment:PsijicThief/A New Guild/@comment-8248675-20131011235358/@comment-8248675-20131012214501

Then I am guessing, they became more or less "Imperial" assassins, once the Empire established foothold in Morrowind. More then likely serving Hous Hlalu more then anything. Hlalu is said to be the Royal house that was put on throne by Empire, so basically Imperial Puppets. They used Morag Tang to eliminate their opposition as public as possible, or that's the impression I got from Jiub's tale in Soul Cairn. I also read on the Russian version of wiki, that House Hlalu used to be involved in criminal activities before Empire got to Morrowind and preaty much bought themselves royal title from Empire. However, once the Empire left during the Oblivion Crisis, Hlalu was made scape goats as they turned out to be very unpopular in Morrowind for supporting Empire. Although, I wonder if some members of Hlalu family, that live in Skyrim in 4 E, are treated a bit better then other Dunmer, just because they used to support Imperial rule in Morrowind. But I am talking about Hlalu from Windhelm, who not only have his own farm, he also have a Nord woman working for him at that farm. Although, he claims that he got there trough hard work, that that's the only way to get Nords to accept Dunmer, hard work. He believes that other Dunmer in Windhelm, complain too much to make themselves more useful for the Nords.

However, I am going off topic. I do wonder though if you are thinking more along the lines of a ninja clan of Elder Scrolls. An organization that may be loyal to the current government, gathering intel, infiltrating locations, perhaps even doing tactical assassinations. But they answer only to their Grand Master and Grand Master alone. If Grand Master of that organization wishes, they would pledge their services to the Emperor, if he or she wishes otherwise, they will pledge themselves to Ulfirc Stormcloak or even Maven Blackbriar. Although, perhaps they should do all that spying just for the sake of money.