He was also known as Signeur de Bourse. The du Bois name is of fuedal origin.
The name is related to Count de Roussey [c 1110] whoses ancestors added this title of du Bois to their patronymic. It is an old name in Neustria, before the time of Rollo.
The ancient du Bois families were entitled by nobility the right to spell their name with a capital B. In ancient times, two families could not share the same surname without the addition of an agnomen.
Neustria is the western part of the Frankish Merovingian Kingdom.
Children Louis DU BOIS b: ABT 1564/1565 in Herzeau, Lille, Wicres, France Jean DU BOIS b: 1565/1566 in Vermeille, Flanders, France Pierre DU BOIS b: 1568 in Herzeau, Lille, Wicres, France