What is Capitula?

Legal Definition
Collections of laws and ordinances drawn up under heads of divisions. Spelman. The term is used in the civil and old English law, and applies to the ecclesiastical law also, mcaning chapters or assemblies of ecclesiastical persons. Du Cange.
See also
-- Black's Law Dictionary
Legal Definition
Collections of laws and ordinances drawn up under heads or divisions.—Spelman.
-- Ballentine's Law Dictionary