Pierre Fermat's father was a wealthy leather merchant and second consul of Beaumont- de- Lomagne. Pierre had a brother and two sisters and was almost certainly brought up in the town of his birth.
Pierre Fermat 's ama ay isang mayaman katad na merchant at ikalawang konsul ng Beaumont-de-Lomagne. Pierre nagkaroon ng isang kapatid na lalaki at dalawang madre at noon ay halos tiyak nagdala up sa bayan ng kanyang kapanganakan.