The access to the interior is done by the staircase of 18 stone stretches coated in glazed tiles of the late 18th century in blue and white representing mythological and gallant style (Diana and Actaeon); in the upper level section, 3 doors, with cocking-cloths in carmine velvet with coat of arms, topped with 19th century tiled panels in blue and white, trimmed with heraldic coats of arms of the Lafões, Cadaval, and Marialva Houses;