Siegfried David

Sources

The numbers on this page point here. Each one links to the record it came from.

1. 1
   WikidataSiegfried David on Wikidata
2. 2
   WikidataSiegfried David: citizenship, on Wikidata
3. 3
   Wikidatacitizenship, as reported
4. 4
   WikidataBechoff-David, Founder