[1] Baptised 17 days after her birth by Maurice, Cardinal Feltin, the Archbishop of Paris, in the chapel of the Archdiocese, her god-parents were two of her grandparents; Philipp Albrecht, Duke of Wurttemberg and Isabelle d'Orléans, Duchess of Guise.

[1] Princess Marie's early childhood was spent in Paris where, from October 1959 to April 1962, her father worked at the Secretariat-General for National Defence and Security as a member of the French Foreign Legion.

[1] Returning to civilian life in 1967, the Count of Clermont and his family briefly occupied the Blanche Neige pavilion on his father's Manoir du Coeur-Volant estate at Louveciennes in 1967, before renting an apartment of their own in the XVe arrondissement.

[1] In 1984 Marie moved back to Geneva to organise the Enfants et Jeunes de la rue ("Street Kids") programme as part of the BICE, conducting outreach in various countries, including Colombia and Brazil.

[1] Transferred by BICE back to Paris, the princess became head of the Commission on Special Medical-Pedagogical Services, which sponsors humanitarian conferences in Europe and the developing world.

[1] At the engagement party held the next day at the Palais Pallavicini, the Vienna home of the fiancé's parents, photographs were taken, and would later be published, showing Clermont speaking cordially with his daughter, sons, former wife and future son-in-law.

[1][2] Her grandfather reportedly called the decision "treason", as tradition dictated that a French princess of the Blood Royal weds in France unless the groom is the ruler or heir apparent of a foreign realm.

[2] The compromise she announced, to hold the mandatory civil wedding at Dreux and to follow with Catholic nuptials at Friedrichshafen, failed to appease the head of the Orléans family; Monseigneur refused to attend either ceremony, as did Clermont.