On Sunday 07. August 2011 Duke Anton Günther of Oldenburg and his wife Ameli, née Princess zu Löwenstein-Wertheim-Freudenberg celebrated their Diamond Wedding in the garden of their Castle Güldenstein. They had married exactly 60 years ago at Kreuzwertheim am Main in a double Wedding. Also the brother of Duke Anton Günther, Duke Peter got then married to Ameli's sister Princess Gertrud zu Löwenstein-Wertheim-Freudenberg. Duchess Gertrud died in February this years otherwise it would have been a double diamond Wedding.