Birth of Baby Jesus -- Nascita di Gesu Bambino - Affresco di Gaudenzio Ferrari (S. Cristoforo - Vercelli, Italy). Gaudenzio Ferrari was an Italian painter and sculptor. Vercelli is a city and comune in the Province of Vercelli, Piedmont, Northern Italy. One of the oldest urban sites in northern Italy, it was founded, according to most historians, around 600 BC. The city is situated on the Sesia River in the plain of the Po River between Milan and Turin.