Joseph Fouché
Richard Casimir Karl August Robert Konstantin was the eldest son and child of Gustav Albrecht, 5th Prince of Sayn-Wittgenstein-Berleburg, a highly decorated German army officer declared missing in 1944 yet only legally declared dead in 1969, and Margareta Fouché d'Otrante, a descendant of Napoleonic statesman Joseph Fouché, Duke d'Otrante. Richard was raised in Sweden with his maternal grandfather, the Duke of Otranto, at Elghammar Castle. He attended the boarding schools Viggbyholm and Sigtuna.