Frederick August I, Duke of Oldenburg
Member of the House of Holstein-Gottorp
Friedrich August, Duke of Holstein-Oldenburg was the son of Christian August, regent of Holstein-Gottorp and his wife Margravine Albertine Friederike of Baden-Durlach. Wikipedia
Born: September 20, 1711, Gottorf Castle, Schleswig, Germany
Died: July 6, 1785 (age 73 years), Oldenburg, Germany
Nationality: German
Grandchildren: Karl Adolf and Lovisa Hedvig of Sweden
Spouse: Princess Ulrike Friederike Wilhelmine of Hesse-Kassel (m. 1752–1785)