Rather than tell you the same story in several posts, I’ll tell you all here on my arm patronymic, the Piéchaud. In any case basis. But Voui!
My grandfather was born in Bordeaux. In my little head, this was a family of Piéchaud Bordeaux. Noted that his father was himself born in Bordeaux, as his father’s father was born in Abzac in Gironde, and the mother of his father at Bordeaux. But Voui!
Beyond (ie, in the eyes of children in medieval or even prehistoric), although there was this family legend that gave Piéchaud Auvergne origins (it was not, however, lemonade), with this pretty etymology of the name that our ancestors at the foot clearance (hot) volcano. Yes, these volcanoes have been extinct for thousands of years.