The name derives from the birth in 1562 of Charles Emmanuel I, son of Duke Emmanuel Philibert and Margaret of Valois.
The ceiling, the painted parts of which are largely lost, presented a motif with roses by Guglielmo Lévera, a painter specialising in perspective, while at the centre, Giovenale Bongiovanni had painted a scene that was still visible in 1936 which he himself described as “Fame showing to Glory the heroic virtues of the Royal Princes accompanied by Magnificence, Valour and Generosity”.
In the corners may be seen the initials of the duke surmounted by the crown, all made of stucco in the early 18th century. The neoclassical decoration was made in conformity with the designs of Carlo Randoni, who planned paired Ionic pilasters along the walls and a large chimney piece in stucco with trophies, arms, putti and theSavoy motto: F.E.R.T.