- Count Constantin de Limburg-Stirum (2013)
- Archduchess Maria-Stella Elizabeth Christiana Yolande Alberta of Austria (2013)
- Archduchess Katarina Marie-Christine Fabiola of Austria (2014)
- Archduchess Magdalena Maria Alexandra Zita Charlotte of Austria (2016)
Through his grandmother, he is related to the Grand Ducal Family of Luxembourg, the Royal Family of Belgium and the Princely family of Liechtenstein.