Le Corbusier
Charles-Édouard Jeanneret (6 October 1887 – 27 August 1965), known as Le Corbusier (), was a Swiss-French architect, designer, painter, urban planner, writer, and one of the pioneers of what is now called modern architecture. He was born in Switzerland and became a French citizen in 1930. His career spanned five decades, and he designed buildings in Europe, Japan, India, and North and South America.
François de Pierrefeu
Le Corbusier invited de Pierrefeu to purchase an apartment in the block at 24 Rue Nungesser et Coli in Paris which Le Corbusier and Pierre Jeanneret had built in 1931-1934. He was in the original list of occupants of 14 April 1934, as was Winter.
Before the Vichy government took power, de Pierrefeu worked with Le Corbusier and the playwright Jean Giraudoux on a government study commission on housing. 
Using the results of this study, in 1942 de Pierrefeu and Le Corbusier published "La Maison des hommes", which they had co-authored. 
On 27 May 1941 Le Corbusier, de Pierrefeu and André Boll were assigned by the Vichy government to a commission to study developing a national construction policy. They were to make inquiries wherever they thought would be useful in France, the empire and other countries.
However, on 14 July 1941 the government cancelled the project.