Our friend Olivier Masmonteil makes us travel in time, in the 15th century with Piero della Francesca and the Victory of Constantine on Maxence, painting which will mark the beginnings of the Italian Renaissance. At that time, the painter was a craftsman: it was the birth of the workshops. Discover the grisaille technique with the egg medium Xavier de Langlais Lefranc Bourgeois and plunge into the origins of painting.