All my inquiries prove negative on info about athurin husband of Ambroise Syllart as well as Mathurin(father married to Francoise Chastaignier. What I do know is that francois was at one time protestant9 the minister refers to him as an arguementative and poor parishoner.His mother's family abjured the protestantfaith and became catholics. Changing religion specifically in their times was not too unlike changing one's undergarments! My main interest would be to go back beyond Mathurin son and mathurin father, but no luck. I've searched for more than 15 years, to no avail. It is doubious that you could learn of Mathurin's occupation !