Constitution.

http://data.archives-nationales.culture.gouv.fr/instantiation/041974-c1p6yx23crd7-1nqqz7909psdi-i1 an entity of type: Instantiation

Constitution. 
xsd:date 1751-04-14 
14 avril 1751 
MC/ET/XXXVI/468 
Constitution. 

data from the linked data cloud