Proudhon was born on January 15, 1809 in Besançon, France. His father, Claude-François Proudhon who worked as a brewer and a cooper, was originally from the village of Chasnans, near the border with Switzerland. His mother, Catherine Simonin was from Cordiron. Claude-François and Catherine had five boys together, two of whom died at a very young age. Proudhon's brothers Jean-Etienne and Claude were born in 1811 and 1816, respectively, and both maintained a very close relationship with Proudhon.