Libellus Conventionis
The Cyclopedic Law Dictionary · Walter A. Shumaker and George Foster Longsdorf; ed. James C. Cahill · 1922
The Cyclopedic Law Dictionary
In the civil law. The statement of a plaintiff's claim in a petition presented to the magistrate, who directed an olficer to deliver it to the defendant. LIBELLUS FAMOSUS (Lat.) A libel; a defamatory writing.
L. 15, Dig. de poen.; Vocat. sub "famosus."
It may be without writing; as, by signs, pictures, etc. 5 Rep. de famosis libellis.