Christian August, Duke of Schleswig-Holstein-Sonderburg-Augustenburg
Christian August I, Duke of Schleswig-Holstein-Sonderburg-Augustenburg was a son of Frederick William of Schleswig-Holstein-Sonderburg-Augustenburg, who was himself a son of Ernest Günther.
He served as provost of the cathedral chapter in Hamburg. Later, he became governor of the Danish island Als, then General of the Infantry and Colonel of the royal guards in Denmark. In 1731, Christian August I succeeded his childless uncle Ernest August.Marriage and issue
He married Frederikke Louise, the daughter of Count Christian Gyldenløve of Danneskiold-Samsøe. They had the following children:
