Succession to the French throne
In 1791 the French National Assembly drew up a new, written Constitution to which the King gave his assent, and which governed France for the last year of the 18th century monarchy. For the first time it was necessary to define formally, as a matter of statutory constitutional law, the system of succession, and the titles, privileges and prerogatives of the Crown. In debating the succession to the Crown the contemporary understanding of the law of succession was publicly clarified. It rebutted the assertion by some that the claim by the Spanish line is a late construct, made to satisfy the ambitions of princes deprived of other claims. Indeed, it is evident that the issue of the rights of the Spanish line to the French crown remained an important constitutional issue.
French Fourth Republic
The French Fourth Republic was the republican government of France between 1946 and 1958, governed by the fourth republican constitution. It was in many ways a revival of the Third Republic that was in place from 1870 during the Franco-Prussian War to 1940 during World War II, and suffered many of the same problems. France adopted the constitution of the Fourth Republic on 13 October 1946.