For Koppelmann there are 31 on Yasni with different names.
Among the most common last names on Yasni Koppelmann is on position 4496.
Koppelman was a Jewish first name and means "Jacob" (see "Famous descendants of Koppelman Eppstein" by Eckart J. Lejeune)
(Sent from: Rolf Mayer (Familie Eppstein))