(Q2498215)
Statements
18 September 1895Gregorian
0 references
15 April 1970
0 references
Identifiers
Sitelinks
Wikipedia(4 entries)
- arwiki كونستنت جانسين
- arzwiki كونستنت جانسين
- enwiki Constant Janssen
- nlwiki Constant Janssen
Belgian businessman and physician