Belgium
The following titleholders or families are authorised by the Crown to use the style Serene Highness:
- Dukes and princes of Arenberg
- Dukes of Beaufort-Spontin
- Dukes and princes of Croÿ
- Princes of Habsburg (archducal cadets resident in Belgium)
- Princes of Lobkowicz (resident in Belgium)
- Dukes and princes of Looz-Corswarem
- Princes of Stolberg-Stolberg
- Dukes of Ursel
Read more about this topic: Serene Highness