- Master Samuel Bernhard Louis van Vollenhoven(2004)
- Master Benjamin Pieter Floris van Vollenhoven(2008)
- Prince Maurits of Orange-Nassau (paternal uncle)
- Mr. José Sekrève
- Mr. Menno de Jong
Archduke Karl-Konstantin Michael Stephan Maria of Austria was born 20 July 2004 as the only son of Georg von Habsburg and Duchess Eilika of...