Paul François Quinsac was born in Bordeaux on 2 March 1858.

Quinsac was a painter of the French School known as Academic art, a specialist in mythological and allegorical subjects, figures and landscapes. He studied with Jean-Léon Gérôme and later he became professor at the School of Fine Arts of Bordeaux (École des beaux-arts de Bordeaux [fr]).

From 1880 he exhibited regularly to the Hall of the French Artists of which he became a member in 1887. He received an honourable mention during the exhibition of 1884, a medal of third class to the World Fair of 1889, as well as a travel grant. He was named Chevalier de la légion d’Honneur in 1903. He died in Bordeaux in May 1929, aged 71.