Princess Stéphanie, Hereditary Grand Duchess of Luxembourg celebrates her 36th birthday on 18 February 2020.
Countess Stéphanie de Lannoy was born on 18 February 1984 in Ronse, East Flanders in what is now part of Belgium.
She is the eighth and youngest child of Count Philippe de Lannoy and Alix della Faille de Leverghem (died 2012) and grew up on the Anvaing family estate in Belgian Hainaut with her many brothers and sisters.
She met Hereditary Grand Duke Guillaume and dated for two years before their engagement was announced on 26 April 2012.
They married in a civil ceremony at the Town Hall in Luxembourg City on 19 October 2012, followed by a religious ceremony in Notre Dame in Luxembourg the following day.
The Grand Ducal Court announced in December 2019 that the Hereditary Grand Duke and the Hereditary Grand Duchess are expecting their first child in May 2020.