Reliable Sources
- Dansk biografisk Lexikon, tillige omfattende Norge for tidsrummet 1537-1814, editor: C. F. Bricka, 19 volumes, Copenhagen:Gyldendal, 1887–1905
- Dansk biografisk Leksikon, 2nd edition, 27 volumes, editors: Povl Engelstoft and Svend Dahl, Copenhagen, 1933-44.
- Dansk biografisk leksikon, 3rd edition, 16 volumes, editor: Svend Cedergreen Bech, Copenhagen, 1979-84.
Reliable Sources with Conditions
- Danmarks Adels Aarbog, Thiset, Hiort-Lorenzen, Bobé, Teisen., (Dansk Adelsforening), [1884 - 2011]. On Danish nobility. Most volumes have a section of new corrections and additions to earlier pedigrees. So each pedigree may have a number of corrections scattered through the 100 or so volumes. An index to the names, as well as additions and corrections, are on the net.
- Wikipedia, Adelsvapen and other Wiki's, including WikiTree are only as reliable as the sources they cite.
Unreliable Sources
- De Hofman, Tycho, Historiske Efterretninger om verfortiente Danske Adelsmaend. 3 vols. Cph: Godiche 1777-79. + 1 vol. (4) On Danish nobility. A place to start, but it contains many errors.
- User generated online trees like Geni, MyHeritage, Ancestry, FamilySearch, Rootsweb, Geneanet, etc. These kinds of sites can be used to find details that can lead to reliable sources. Some trees cite sources that can be used for your profiles when you have checked them out. Never use a user generated tree as source.
- Published books, articles and blogs that do not have sources listed.
- See also Category:Frauds_and_Fabrications