John Ernest, Duke of Saxe-Coburg
| John Ernest | |||||
|---|---|---|---|---|---|
| Duke of Saxe-Coburg Landgrave of Thuringia | |||||
Portrait by Lucas Cranach the Elder | |||||
| Reign | 1542–1553 | ||||
| Predecessor | John Frederick I | ||||
| Successor | John Frederick II | ||||
| Born | 10 May 1521 Coburg | ||||
| Died | 8 February 1553 (aged 31) Coburg | ||||
| Spouse | Catherine, daughter of Philip I, Duke of Brunswick-Grubenhagen | ||||
| |||||
| House | House of Wettin Ernestine Line | ||||
| Father | John, Elector of Saxony | ||||
| Mother | Margaret of Anhalt-Köthen | ||||
| Religion | Lutheran | ||||
John Ernest (German: Johann Ernst) (10 May 1521 – 8 February 1553) was a Duke of Saxe-Coburg and a member of the House of Wettin.