Erhart de Rougemont who bought in 1495 “the house called Rebleuten-Zunft in Basle in the Freistrasse.’
Peter Rosemond had seen in print the letters from Erasmus to Gotschalk Rosemondt. He noticed that a seal used by a Rosemont in Holland, bearing a jumping fox, was like an emblem he had noticed in a wall of the house Rebleuten-Zunft in Basle. This seal dated back to 1430.
This James (or Jacob, for these names were once interchangeable) was the son of Hans Ulrich
Rosemond, born 1623, a weaver; who was a son of Hans, a weaver, born 1581; who was a son of Fred Rosemond, born 1552, a weaver, member of town council and a local captain; who was the son of another Hans
whose date of birth is not known, but he too, was a weaver and became a citizen of Basle in 1534. His father was Erhart de Rougemont who bought in 1495 “the house called Rebleuten-Zunft in Basle in the
Freistrasse.’ Peter Rosemond further reported information from the Records Office in Basle that “before Basle the family resided in Holland up to 1338, and it is said they descended from the estate
Rosemont, near Belfort, in France, where also the village Rougemont is found.” A family coat-of-arms was registered in Basle about 1537 when the first Hans became a resident there.