- Prince Léopold Guillaume Marie Joseph de Nassau (2000, twin)
- Princess Charlotte Wilhelmine Maria da Gloria de Nassau (2000, twin)
- Prince Jean André Guillaume Marie Gabriel Marc d'Aviano de Nassau (2004)
He and his family lead fairly private lives, but attends official funtions such as weddings and big birthday celebrations. He shares a birthday with Prince Albert II of Monaco's eldest child, Jazmin Grace Grimaldi.