Grethen
Grethen is a surname of German origin. It is considered a relatively uncommon surname. Information regarding its etymology is somewhat scarce, but it is likely a variant or diminutive of other, more common German surnames. It is also possible the name has geographical origins, potentially derived from a place name, or occupational origins, linked to a specific trade or profession. Due to the limited publicly available information, a definitive origin and meaning remain speculative. Further research, including genealogical records, would be needed to ascertain specific family history related to the surname.