Duke of Hernani
Duke of Hernani is a hereditary title of Spanish nobility, accompanied by the dignity of Grandee. It was created on 11 August 1914 by King Alfonso XIII in favor of his fourth cousin, Manfredo Luis de Borbón y Bernaldo de Quirós. They are both King Carlos III's great-great-great grandsons.
Manfredo, as son of Luis de Jesús de Borbón y Borbón, 1st Duke of Ánsola and Ana Germana Bernaldo de Quirós, 1st Marchioness of Atarfe, and after the death of his older brother, also inherited his parents' titles, becoming a grandee three times. During his life, Manfredo was an independent politician, member of parliament during the Restoration and the dictatorship of Francisco Franco, as well as governor of the League of Red Cross Societies, among others.
Dukes of Hernani
- , 1st Duke of Hernani, 3rd Duke of Ánsola, 3rd Marquess of Atarfe
- Infanta Margarita, 2nd Duchess of Hernani, Duchess of Soria
Line of succession
- , 1st Duke of Hernani
- Infanta Margarita de Borbón y Borbón, 2nd Duchess of Hernani
- * . Alfonso Juan Carlos Zurita y Borbón
- * . María Sofía Emilia Zurita y Borbón
- ** . Carlos de Zurita y Borbón
Legal battle over succession
Both the fortune and the ducal title were claimed by a branch of the Méndez de Vigo family, sons of one of Manfredo's brothers whom his mother had with her second husband. They claimed that the will was false and they accused the royal family of committing "theft, fraud and forgery of Historical Heritage assets". In 1999, the Supreme Court, based on Law 44 of Toro and the Pragmatic sanction of Charles IV of 1804, ruled that, the owner of a Title of the Kingdom —in this case, Manfredo— is free to designate a successor, with royal authorization, as long as he or she has no offspring.