| Duke Friedrich August of Oldenburg | |||||
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| Born | 11 January 1936 Rastede, Oldenburg, Germany | ||||
| Died | 9 July 2017 (aged 81) Merano | ||||
| Spouse | Princess Marie Cécile of Prussia
(m. 1965; div. 1989)Countess Donata of Castell-Rüdenhausen
(m. 1991; died 2015) | ||||
| Issue |
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| House | Holstein-Gottorp | ||||
| Father | Nikolaus, Hereditary Grand Duke of Oldenburg | ||||
| Mother | Princess Helena of Waldeck and Pyrmont | ||||
Duke Friedrich August of Oldenburg (11 January 1936 – 9 July 2017) was a member of the House of Holstein-Gottorp. He is a son of Nikolaus, Hereditary Grand Duke of Oldenburg and Princess Helena of Waldeck and Pyrmont.