Prince Félix of Bourbon-Parma (later Prince Félix of Luxembourg; 28 September 1893 – 8 April 1970) was the husband of Charlotte, Grand Duchess of Luxembourg and the father of her six children, including her successor Jean, Grand Duke of Luxembourg. By birth to his father Robert I, Duke of Parma, he was a member of the House of Bourbon-Parma and one descendant of King Philip V of Spain. Prince Félix was the longest-serving consort of Luxembourg. Early life Prince Félix was one of the 24 children of the deposed Robert I, Duke of Parma, being the duke's sixth child and third son by his second wife, Maria Antonia of Portugal. His maternal grandparents were Miguel of Portugal and Adelaide of Löwenstein-Wertheim-Rosenberg. He was born in Schwarzau am Steinfeld. He was also the younger brother (by sixteen months) of Empress Zita of Austria. Of the twelve children of Duke Robert's first marriage to Maria-Pia of the Two Sicilies, three died as infants, six had learning difficulties, and only three married. Despite the loss of his throne, Duke Robert and his family enjoyed considerable wealth, travelling in a private train of more than a dozen cars among his castles at Schwarzau am Steinfeld near Vienna, in northwest Italy, and the magnificent Château de Chambord in France. Less than four months after Robert's death in 1907 the Grand Marshal of the Austrian Court declared six of the children of his first marriage legally incompetent, at the behest of Duchess Maria Antonia. Nonetheless, Robert's primary heir was Elias, Duke of Parma, (1880–1959), the youngest son of the first marriage and the only one to father children of his own. Duke Elias also became the legal guardian of his six elder siblings. Although Félix's elder brothers, Prince Sixte and Prince Xavier, eventually sued their half-brother Duke Elias to obtain a greater share of the ducal fortune, they lost in the French courts, leaving Prince Félix with modest prospects. Félix served in the Austrian Dragoons as Lieutenant and Captain, but resigned his commission in November 1918. Marriage to Grand Duchess Charlotte On 6 November 1919 in Luxembourg, the prince married his first cousin Grand Duchess Charlotte of Luxembourg, having been admitted to the nobility of Luxembourg and also made Prince of Luxembourg by Grand Ducal decree the day before. Unlike some European consorts, Félix neither adopted his wife's dynastic surname (of Nassau), nor relinquished his own