The Grand-Ducal Court of Luxembourg announced on Monday 22 April 2013 that "the wedding of His Royal Highness Prince Felix of Luxembourg and Miss Claire Lademacher will be celebrated on Saturday 21st September 2013 at the Sainte Marie-Madeleine de Saint-Maximin-la-Sainte-Baume basilica in France. The civil wedding will take place on 17th September at Königstein im Taunus in Germany."
The couple's engagement was announced on 13 December 2012. Ms. Lademacher is currently living in Rome, Italy, where she, according to the CV provided by the court, is working on her PhD on the ethical aspects of organ donation consent.
Many had speculated that the wedding would take place in Germany where Prince Felix' fiancée comes from, and were of course right, as the civil wedding is the only valid one according to the authorities, while some might have been surprised that the religious celebration and main event will take place in Saint-Maximin-la-Sainte-Baume in the Var departement in Southeastern France. Some have also found it somewhat surprising that Prince Felix, who is second in the line of succession to the throne, is not getting married in Luxembourg. I have no opinion on the matter, but as it has been pointed out, it has not been so unusual for princes of Luxembourg to marry outside the grand-duchy. Grand Duke Henri's younger brother Prince Guillaume married in Versailles, France, while Grand Duke Jean's brother Prince Charles married in Guilford in Surrey, England.
See also the blog Luzarazzi concerning the announcement and the five bishops having official roles at the religious celebration as well as the local newspaper Wort.lu.