In the Fraternal House of the Raven, backtrack a few rooms until you're outside in the foggy dark courtyard again. Go through the big gate with the eye on it and into the section with the turret and enemies (the enemies have respawned so be careful). Go back into the Landsdowe Residence (the one where the man and the woman were arguing about violence) and navigate your way through the halls. Exit the residence on the other side and run to the left. You should see some freight hooks, however i cant remember how many exactly there are. On the last one you should be able to jump onto the bacony of the building with the big skylights. Once on the balcony, turn left and go down the first flight of stairs. Go to the end of the hall (without taking the second stairs), and turn right into the room. In this room, on the right, will be the chest.
He pulled out a cup of molten cheese and started rubbing it all over himself and ate a mature cheddar sandwich and beat me when he had less than 5% health.