Pierre-Émile Cornillier (1862 – 1942), was a renowned artist and the son of the merchant Pierre-Émile Cornillier, the deputy mayor of Nantes, and Marie-Joséphine Leroux. He was also the uncle of the writer, Mireille Havet.
He married Anna Lyon, of American nationality, on March 20, 1901 in Paris, in the sixth arrondissement.
He exhibited for the first time at the Salon of 1885 and sent his works to the Salon of the National Society of Fine Arts until the beginning of the First World War.
