Reichmann, Reimann, Reimers, Eisenhower, Heilemann, Klein, Weimer, Weiss. But in certain settlement areas, these endings could also refer to Swedish and Russian Jewish backgrounds.
Many German names have their roots in the Germanic middle ages.
The process of forming family names began around the year 1100 and extended through 1600. All social classes and demographic strata aided in the development of names. Over time the first name began to be applied to the bearer's whole family. Until the 17th century, first names played a more important role. In East Friesland, family names originated the latest.