Vittorio Croizat

French engineer Joseph Chaley was a great uncle to both Marie and Victor.

[1][2] Croizat worked as an engineer in Turin,[3] specializing in electric and gas lighting.

He obtained multiple patents (in Germany and the United States, at a minimum) for gas lighting and heat exchange apparatuses.

[10] Croizat was a pioneer in the automobile industry of northern Italy; after licensing motor designs from Peugeot, he founded Automobili Peugeot SA Brevetti to produce new automobiles under the brand Peugeot-Croizat.

[12] Victor and Marie had several children; one, Léon Croizat, became a pioneer in botany and evolutionary theory.