If you would like to cite this person in a Wikipedia article please use the following template:
<ref name=CH>{{cite web |url=https://www-6.collection.cooperhewitt.org/people/2318811515/ |title=Baron Carl Rolas du Rosey |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=24 July 2025 |publisher=Smithsonian Institution}}</ref>
