She moved to Italy in 1802 to complete her education, serving also for a while as the companion to Letizia Ramolino and converting to Roman Catholicism while there.

[2] During this time Bansi was the subject of a drawing by Jean-Auguste-Dominique Ingres that is today in the Louvre; they had met twice, first in the studio of Jacques-Louis David and some years later in Rome.

Her name in the catalogue entry was given as Mme Nannoni, née Bansi, with an address at rue du Doyenné, no.

Later in her career Bansi was appointed maîtresse de dessin at the schools of Saint-Denis and Sainte-Clotilde.

She donated two pastels by Adélaïde Labille-Guiard, portraits of Jean-Jacques Bachelier and the painter Vincent, to the Louvre in 1832.