Single room in large period mansion apartment, central

This residence technically consists of two separate apartments, which in practice are perceived as one large unit. The first floor contains a total of seven rooms: one double room and six single rooms. The second floor contains four rooms: one double room and three single rooms. The two apartments feel like one because they basically share a common entrance/corridor. On the first floor there is a large dining room connected to an open kitchen, where communal Sunday dinners and gatherings often take place. There are two bathrooms and a separate toilet. At the back of the apartment is a cozy...