"Duarte Pio, Duke of Braganza, in his quality of Head of the Royal House of Portugal, recognized Diana Álvares Pereira de Melo as 11th Duchess of Cadaval.
However, he also granted to her eldest half-sister, Rosalinda Álvares Pereira de Melo, the new title of Duchess of Cadaval-Hermès (she is...