Hereditary Grand Duchess Stephanie Celebrates Her 41st Birthday

Today is February 18, 2025, and Hereditary Grand Duchess Stéphanie is celebrating her 41st birthday. Countess Stéphanie de Lannoy was born on February 18, 1984, in Ronse, Belgium. She is the youngest of the eight children of Count and Countess de Lannoy. The House of Lannoy can be traced back to the 13th-century nobility of Hainaut. The Counts of Hainaut were often rulers of other counties, including Flanders and Holland.

Stéphanie studied at the École Sancta Maria in Renaix, Belgium. She began her secondary education at Collège Sainte-Odile in northern France and continued at Institut de la Vierge Fidèle in Brussels, where she obtained her diploma in 2002. She majored in German philology at the University of Louvain (UCLouvain) in Louvain-la-Neuve and also earned a master's degree at Humboldt University of Berlin.

On October 20, 2012, Stéphanie married Hereditary Grand Duke Guillaume at Notre-Dame Cathedral in Luxembourg City. Since then, she has held the title of Her Royal Highness the Hereditary Grand Duchess of Luxembourg. Hereditary Grand Duchess Stéphanie and Hereditary Grand Duke Guillaume of Luxembourg are parents to two sons: Prince Charles, born on May 10, 2020, and Prince François, born on March 27, 2023.