Ernest August, Duke of Schleswig-Holstein-Sonderburg-Augustenburg
| Ernest August, Duke of Schleswig-Holstein-Sonderburg-Augustenburg | |
|---|---|
| Spouse(s) | Maria Theresia of Weinberg |
| Noble family | House of Oldenburg |
| Father | Ernest Günther, Duke of Schleswig-Holstein-Sonderburg-Augustenburg |
| Mother | Auguste of Schleswig-Holstein-Sonderburg-Glücksburg |
| Born | 30 October 1660 |
| Died | 12 March 1731 (aged 70) |
Ernest August, Duke of Schleswig-Holstein-Sonderburg-Augustenburg (30 October 1660 – 12 March 1731) was the second son of Duke Ernest Günther and his wife Auguste.
Ernest August converted to Catholicism and became a canon in Strasbourg. However, he later reverted to Lutheranism.
In 1692, he succeeded his childless brother Frederick as Duke of Augustenburg. In 1695 he married Baroness Maria Theresia of Weinberg. This marriage remained childless.
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