Otrante Amethyst Tiara. Dukedom bestowed 1808 by Napoleon I upon statesman/Minister of Police Joseph Fouché. Named after town Otranto on E coast of Italy. The ducal house is extant in Sweden where the dukes have lived since the 1800s. As of 2011, the titles are held by Charles-Louis Armand Fouché d'Otrante, 8th Duc d'Otrante (born in Stockholm, 14 March 1986).worn by Countess Birgitta d’Otrante at the wedding of Princess Benedikte of Denmark to Prince Richard of S-W-B in 1968.