Louise Marie Madeleine Fontaine
Louise-Marie-Madeleine Guillaume de Fontaine (after marriage known as Madame Dupin; 28 October 1706 – 20 November 1799) was a French "saloniste".
Wedding of Guillaume, Hereditary Grand Duke of Luxembourg, and Countess Stéphanie de Lannoy
The more elaborate, Catholic wedding ceremony was held in Notre-Dame Cathedral the next day. The ceremony, which began shortly after 11:00 a.m. on October 20, was officiated by Archbishop Jean-Claude Hollerich of the Roman Catholic Archdiocese of Luxembourg. The weather on the day of the ceremony was described as "unseasonably warm." Stéphanie was escorted into the Cathedral by her eldest brother, Count Jehan. Hereditary Grand Duke Guillaume arrived at the ceremony with his mother, Grand Duchess Maria Teresa of Luxembourg.