Tractatus De Legibus
Perhaps at the instigation of Henry II, Glanvill wrote or oversaw the writing of the Tractatus de legibus et consuetudinibus regni Angliae (English: Treatise on the laws and customs of the Kingdom of England), a practical discourse on the forms of procedure in the king's court. As the source of our knowledge regarding the earliest form of the curia regis, and for the information it affords regarding ancient customs and laws, it is of great value to the student of English history. It is now generally agreed that the work of Glanvill is of earlier date than the Scottish law book known from its first words as Regiam Majestatem, which bears a close resemblance to his.
The treatise of Glanvill was first printed in 1554. An English translation, with notes and introduction by John Beames, was published at London in 1812. A French version is found in various manuscripts, but has not yet been printed. The treatise was then edited and translated by G.D.G. Hall for the Oxford University Press 1965. The Tractatus may in fact have been ghostwritten by Ranulf's nephew Hubert Walter, the Chief Justiciar and Lord Chancellor of England under Richard I.
Read more about this topic: Ranulf De Glanvill