The Placiti Cassinesi are four official juridical documents written between 960 and 963 in southern Italy, regarding a dispute on several lands among three Benedictine monasteries and a local landowner.

They are considered the first extant documents written in a Romance vernacular of Italy, along with the Veronese Riddle[1] and the Commodilla catacomb inscription.

Original text: Translation: The four placiti were discovered by Erasmo Gattola in the Benedictine monastery of Monte Cassino in the 1700s.

They were meant to resolve land disputes in Capua, Sessa Aurunca and Teano, between three monasteries owned by Monte Cassino and Rodelgrimo d'Aquino, a local landowner.

The depositions given by the witnesses were used to confirm that the monasteries were the legitimate owners of the land in question.