Isac ben Samuel, Bickert is mentioned 36 times between 1675 and 1704. He died around 1700. His designation in the Stühlingen family tree is 'B1.2.1.2.1'. His father was Samuel (Schmuli) ben Naphtali, Bickert.
Isac was under protection from 1675 to 1700. He was a cattle dealer. Isac was fined frequently for minor infractions. He died 1699 or 1700, and his widow was exempt fom protection tax, presumably because of poverty. .