From SuspireWiki
The Annunaku are an impossibily old bloodline who's history spans so long that it's origins have faded into history. All Annunaku fancy themselves with "noble spirits" and masters of their chosen fiefs and through the use of their power Tenure they can control all aspects of it. They're obsessed with courtesy and politeness when it comes to their territories and they can be either terribly doting individuals, full of graciousness and honor to those who are considered associates and welcome within their territory, or horrible enemies who are filled with utter contempt and hatred for individuals who have intruded or broken the laws of their lands.
Unlike many Gangrel, the Annunaku are comfortable in the oppressive metal and concrete kingdoms of the other Kindred in a city, and indeed many of them have taken to cities in order to sate the desire to lord over vassals.
The type of Landlord can differ greatly, but the one thing they have in common is the fact that all of them wish to rule over a fief - whether it be an entire city, a single domain, an apartment block or even a slum.
Nickname: Landlords
Parent Clan: Gangrel
You can find more about this bloodline in the Invictus book.
