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.
History of France
On 20 September 1792, the French won a battle against Prussian troops near Valmy and the new National Convention replaced the Legislative Assembly. From the start the Convention suffered from the bitter division between a group around Robespierre, Danton and Marat referred to as 'Montagnards' or 'Jacobins' or 'left' and a group referred to as 'Girondins' or 'right'. But the majority of the representatives, referred to as 'la Plaine', were member of neither of those two antagonistic groups and managed to preserve some speed in the Convention's debates. Right away on 21 September the Convention abolished the monarchy, making France the French First Republic. A new French Republican Calendar was introduced to replace the Christian Gregorian calendar, renaming the year 1792 as year 1 of the Republic.