Born out of wedlock, he was denied titles and family rights by his father until the Dutch Council of State ruled in his favor in 2018, granting him the style and title of His Royal Highness Prince Carlos Hugo Roderik Sybren de Bourbon de Parme.
[4] His father told Dutch media that Hugo's birth was "his mother's wish" and an "independent decision", denying his son any family rights.
[1][5] His maternal grandmother, Ingrid Pieksma-Klynstra, was the wife of Adolph Roderik Ernst Leopold, Count of Rechteren-Limpurg.
Upon the death of his grandfather, Carlos Hugo, in 2010, his father became the titular Duke of Parma and Piacenza, Carlist claimant to the Spanish throne, and the Head of the House of Bourbon-Parma.
[1][2] He also sought a listing in the register of the High Council of Nobility which, by law, offers illegitimate children of nobles a right to their family's titles.
[3] In 2016 the Ministry of Justice and Security ruled in favor of Hugo's claim and granted him the use of his father's surname.