The roof structure, dating from the 19th century, has at the center, the Royal Arms of Portugal.
The set of arms (halberds) of the Academic Royal Guard displayed are still used by the Archers (guards) in the formal academic ceremonies (solemn doctotare sessions, "honoris causa", investiture of the Rector, the solemn opening of the school year).
The Yellow Room, next to the Armory, has walls lined with yellow silk alluding to the Faculty of Medicine. It was, indeed, in this room that the "congregation of the Faculty of Medicine" met (meeting of the constituent bodies of the Faculty). The paintings on the walls are of 19th century Rectors of the University.
The Blue Room is the last room of this former Royal Wing that can be visited. The color evokes the Faculty of Science and Technology and, as the previous one, it also displays paintings of former Rectors.
On the back wall on the left side, one can see the portrait of Rector Viscount Seabra which, in addition to teaching at the Faculty of Law, was also the first author of the Portuguese Civil Code.
These rooms are still used at the end of academic ceremonies as access rooms to the Senate Room, the room where, after the PhD, all teachers and invited authorities present their compliments to the Rector and to the new Doctor.