A friend and neighbor of the collector Armand, comte Doria [1824-1896], Hazard also collected Barbizon and Impressionist paintings. In fact he purchased some of his collection from Doria's estate sale, held at the Galerie Georges Petit in 1896. After the death of his widow, Hazard's own collection was dispersed at auction at Georges Petit (1-3 December 1919) and at the hôtel Drouot (10-11 and 29 December 1919). A portrait of him by Adolphe-Félix Cals, donated to the Louvre, was not retained and its whereabouts are now unknown.
Distel, Anne. Les collectionneurs des impressionists: Amateurs et marchands. Paris, 1989:174-175