The original installation of the mansion dates back probably to the sixteenth cenutry, when it belonged to Aurelio Alcagni. It then went to the Guicciardi, to the Pansa and to the Prampolini. The mansion currently shows itself in a good eighteenth-century architecture. The double frontal staircase is rebuilt while the one in the rear front is intact. Inside, numerous rooms of the first floor carry nineteenth-century paintings with various subjects: landscapes, decorations, fake curtains, medallions. Even the central lounge carries paintings. On the upper floor there's still the ceiling with "Ganimede kindapped by the Eagle". attributable to the painter Prospero Minghetti (1786-1853). In the ex-library two paintings with the myth of Apollo and Dafne and the myth of Polifemo were taken away and lost.