Grand Duke and Grand Duchess Attend Te Deum Service for National Day 2026

On June 23, 2026, Grand Duke Guillaume and Grand Duchess Stéphanie attended the traditional Te Deum service at the Cathedral of Our Lady of Luxembourg as part of the public and official celebrations marking Luxembourg’s National Day and the Grand Duke’s official birthday. The first National Day celebration of their reign concluded with the traditional Te Deum service at the Cathedral of Our Lady of Luxembourg.