Duchess of Courland

Duchess of Courland

House of Kettler, 1561–1737

House of Biron, 1737–1740

• Council of the Duke, 1740–58

House of Wettin, 1758–1763

• None, although Charles of Saxony was morganatically married with the Polish countess Franciszka Korwin-Krasińska.

House of Biron, 1763–1795