The Luther family living room, where the conversations recorded by students in "Table Talk" (starting in 1531) took place. It was not until around 1535 that Luther could afford to decorate the living room with the painted walls and stove. When Luther's house was sold to the university in 1564, all the rooms were renovated except this one. It has been shown to visitors as a museum ever since. One of these visitors was Peter the Great, who wrote his name on the top of the door.