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 Günther 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.
birth date
1660-10-30
death date
1731-03-12
parent
Ernest Günther Duke of Schleswig-Holstein-Sonderburg-Augustenburg, Auguste of Schleswig-Holstein-Sonderburg-Glücksburg