John Frederick
E2167589
UNEXPLORED
John Frederick was a 17th-century German duke of Schleswig-Holstein-Gottorp who played a role in the complex dynastic and political affairs of northern Europe.
All labels observed (1)
| Label | Occurrences |
|---|---|
| John Frederick canonical | 1 |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.