For Heiss there are 354 on Yasni with different names.
Among the most common last names on Yasni Heiss is on position 4173.
The family name is derived from the hot name Mathias. In southern Germany, abbreviated to "Theis" and then again to hot. The name is more common south of the Danube to the German - in Italian language border in South Tyrol. The individual bearers of the name are not all related. By the way, as "hot" formerly was known in Old Bavaria a one-year bull.
(Sent from: Wolfgang Heiß,)