On the evening of September 24, 2019, Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie attended a reception hosted by the Honorary Consul of Luxembourg to the Kingdom of Morocco, Atman Haloui at Villa des Arts in Casablanca-Settat, Casablanca.
Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie visited Tanger Med cargo port in Tangier (or Tangiers) city in northwestern Morocco.
On October 12, Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie attended the opening of "Home & Living Expo 2019" held at Luxexpo The Box.
On November 4, 2019, Monday, the 14th Concert in memory of the Grand Duchess Joséphine-Charlotte was held at the Philharmonie in Luxembourg-Kirchberg. Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie attended the concert.
On November 12, Hereditary Grand Duchess Stephanie visited the Salon 2019 of the Luxembourg Art Circle (CAL) at Tramsschapp Culture Center, which took place as part of the fifth edition of the Luxembourg Art Week.
Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg, are expecting a baby in May next year, the Grand Ducal Court has announced. In the announcement made by Grand Ducal Court, it is said that: The Grand Duke and Grand Duchess Maria are immensely pleased to announce that the Hereditary Grand Duke and Hereditary Grand Duchess are expecting Their first child. The birth is scheduled for May. The Grand Duke, the Grand Duchess and the members of both families are delighted with the news and share their great joy.
On December 6, Friday, Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie attended the opening of the new pop-up store of the Association De Mains De Maîtres, located on Grand-Rue Street in the center of Luxembourg.
On January 16, 2020, Grand Duke Henri, Hereditary Grand Duke Guillaume, Hereditary Grand Duchess Stephanie and Princess Alexandra hosted traditional New Year reception for members of the parliament and members of the government and members of the diplomatic corps (ambassadors) accredited in Luxembourg.
On January 23, 2020, Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie of Luxembourg attended the evening of celebration held on the occasion of the 75th anniversary of The Grand-Duchess Charlotte Aid Organization.
On January 24, Hereditary Grand Duchess Stephanie visited new office building of The Association of Friends of Museums (Association des Amis des Musées) in Luxembourg.
Hereditary Grand Duke Guillaume and Hereditary Grand Duchess Stephanie attended the opening of the exhibition "D’après nature" of the artist Jean-Marie Biwer at the Mudam Luxembourg Museum.