All French and Crusader State Charters and Customs

The Assizes of Jerusalem are a collection of numerous medieval legal treatises written in Old French containing the law of the crusader kingdoms of Jerusalem and Cyprus.

The Assizes of Romania (French: Assises de Romanie), formally the Book of the Usages and Statutes of the Empire of Romania (Venetian: Libro de le Uxanze e Statuti de lo Imperio de Romania), is a collection of laws compiled in the Principality of Achaea that became the common law code of the states of Frankish Greece in the 13th-15th centuries, and continued in occasional use in the Venetian Ionian Islands until the 18th century.

The Charter of 1815, signed on 22 April 1815, was the French constitution prepared by Benjamin Constant at the request of Napoleon I when he returned from exile on Elba.

The first Corsican Constitution was drawn up in 1755 for the short-lived Corsican Republic independent from Genoa beginning in 1755, and remained in force until the annexation of Corsica by France in 1769.

The Coutumes of Beauvaisis is a book on medieval French law composed by Philippe de Beaumanoir at the end of the 13th century in Old French prose.

The fundamental laws of the Kingdom of France were a set of unwritten principles which dealt with determining the question of royal succession, and placed limits on the otherwise absolute power of the king from the Middle Ages until the French Revolution in 1789.