(Q1694766)
Statements
6 October 1356Gregorian
1 reference
12 March 2015
Identifiers
Johann IV Oldenburg, Count of Oldenburg
1 reference
7 August 2020
Sitelinks
Wikipedia(3 entries)
- bgwiki Йохан IV (Олденбург)
- dewiki Johann IV. (Oldenburg)
- frwiki Jean IV d'Oldenbourg