His Royal Highness Prince Charles of Luxembourg, Prince of Nassau, Prince of Bourbon-Parma, celebrates his sixth birthday today.

Born Prince Charles Jean Philippe Joseph Marie Guillaume at the Maternité Grande-Duchesse Charlotte in Luxembourg City on May 10th, 2020, he is the eldest child of Their Royal Highnesses Grand Duke Guillaume and Grand Duchess Stéphanie of Luxembourg, and the older brother of His Royal Highness Prince François of Luxembourg.

Following the accession of his father to the Grand Ducal Throne on October 3rd, 2025, Prince Charles became the youngest heir to a throne in Europe.

Prince Charles was baptized on September 19th, 2020, at the Abbaye Saint-Maurice de Clervaux in northern Luxembourg.  His godparents are His Royal Highness Prince Louis of Luxembourg, the younger brother of Grand Duke Guillaume, and Countess Gaëlle de Lannoy, the elder sister of Grand Duchess Stéphanie.

To mark the occasion of the Prince’s birthday, the Maison du Grand-Duc released a series of new portraits photographed by Ms. Sophie Margue at Château de Fischbach.