EntityQ5919322· pop 6· linked from 7 articlesKarl KoppmannSign in to savearchivist, historian and non-fiction writer (1839-1905)ConnectionsHamburgEntityRostockEntityGermansEntityhistorianEntityHanseatic LeagueEntityarchivistEntityCategories1839 births1905 deaths19th-century German historiansBiography articles needing translation from German WikipediaWriters from Hamburg