On Sunday, the Grand Ducal Family took part in the celebrations marking the closing of the Octave. The Octave is the Protector of Luxembourg and she is celebrated for two weeks each year.

In the morning, the Grand Ducal Couple, Prince Félix, Princess Claire, and Prince Louis attended the traditional pontifical mass with the renewal of the consecration to Notre Dame.

In the afternoon, the Grand Ducal Couple, the Hereditary Grand Ducal Couple with their children, Prince Félix and Princess Claire with their children, and Prince Louis took part in the Solemn Procession.

The Grand Ducal Family then appeared at the Balcony of the Grand Ducal Palace to greet the crowds.

Grand Duchess Maria Teresa wore a Natan top with her Alexander McQueen and Prada accessories. She also wore her MdeU earrings.

Hereditary Grand Duchess Stéphanie wore a Natan dress with her Natan shoes and repeated earrings.

Prince Charles wore a Confiture sweater over a Tartine et Chocolat bodysuit with Tartine et Chocolat dungarees and La Coqueta shoes.

It seems Princess Claire wore a Ralph Lauren blazer with white trousers and Chatelles slippers.

Princess Amalia wore a Jacadi cardigan with a striped dress and Jacadi shoes.

Prince Liam wore a navy outfit with Jacadi shoes.