PIEM
ACTING
Pierre de Barrigue de Montvallon (12 November 1923 – 12 November 2020), known professionally as Piem, was a French designer.
Piem was the son of Serge de Montvallon, director of the Maison de la chimie, and Madeleine Champavère.
He was also the brother of Robert de Montvalon.